In memory of
JOHN SELFRIDGE
John Selfridge, mathematician, computer pioneer and philanthropist, 83, of DeKalb, Ill., died on Halloween, Oct. 31, 2010, just a week after his mentally-challenged daughter Margaret flew out to celebrate her birthday in his hospital room. John Selfridge, a mathematician's mathematician and a bon vivant's bad-boy, has found his last prime number and sung his last Al Jolsen song. Born in Ketchikan, Alaska, the youngest of six children, he earned degrees from the University of Washington and UCLA and taught at various universities and greatly (exponentially?) expanded the Northern Illinois University Math Department during his tenure as chair. He also served as executive editor of Math Reviews. His Number Theory Foundation supported mathematicians, particularly graduate students, to attend conferences and join the larger family of number theorists. For the last 10 years, Selfridge lived at the Oak Crest retirement community in DeKalb, regularly leaving for karaoke, math conferences, and ocean cruises. Before falling ill in the year 2000, Selfridge was an "itinerant mathematician," (his tax-preparer's description), visiting family, colleagues and ex-girlfriends all over. Selfridge was a pioneer in utilizing computers. As a graduate student in the 1950s, he used the 13 commands of the early SWAC computer to find two of the then-largest-known prime numbers. In February of this year, another computer search found a very large factor – 54 digits long – which proved Selfridge's 1964 conjecture that a certain Fermat number was not a prime. He was a news junkie and life-long Democrat, often battling the U.S. State Department for denying visas to his friend Paul Erdos and other world-class mathematicians just because they had passports from Eastern Block countries. He is survived by daughters, Margaret and Barbara, an ex-wife and step-daughter, all of California; a host of nephews and nieces – he was "the Unc" – and many devoted personal attendants. More information about Selfridge's life is available online, at Wikipedia, at his daughter Barbara's Facebook page, and through the American Mathematical Society. Selfridge's body has been donated to medical science, and there will be a memorial at 4 p.m. Saturday, Nov. 13, at Anderson Funeral Home, 2011 S. Fourth St., DeKalb. For information, visit www.AndersonFuneralHomeLtd.com or call 815-756-1022. In lieu of flowers, donations of any size can be made, tax-deductible, to The Number Theory Foundation, Math Department, Dartmouth College, Hanover, NH 03755.
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Services Provided By
Anderson Funeral Home
2011 S. Fourth St.
Dekalb, IL 60115
In memory of
JOHN SELFRIDGE
John Selfridge, mathematician, computer pioneer and philanthropist, 83, of DeKalb, Ill., died on Halloween, Oct. 31, 2010, just a week after his mentally-challenged daughter Margaret flew out to celebrate her birthday in his hospital room. John Selfridge, a mathematician's mathematician and a bon vivant's bad-boy, has found his last prime number and sung his last Al Jolsen song. Born in Ketchikan, Alaska, the youngest of six children, he earned degrees from the University of Washington and UCLA and taught at various universities and greatly (exponentially?) expanded the Northern Illinois University Math Department during his tenure as chair. He also served as executive editor of Math Reviews. His Number Theory Foundation supported mathematicians, particularly graduate students, to attend conferences and join the larger family of number theorists. For the last 10 years, Selfridge lived at the Oak Crest retirement community in DeKalb, regularly leaving for karaoke, math conferences, and ocean cruises. Before falling ill in the year 2000, Selfridge was an "itinerant mathematician," (his tax-preparer's description), visiting family, colleagues and ex-girlfriends all over. Selfridge was a pioneer in utilizing computers. As a graduate student in the 1950s, he used the 13 commands of the early SWAC computer to find two of the then-largest-known prime numbers. In February of this year, another computer search found a very large factor – 54 digits long – which proved Selfridge's 1964 conjecture that a certain Fermat number was not a prime. He was a news junkie and life-long Democrat, often battling the U.S. State Department for denying visas to his friend Paul Erdos and other world-class mathematicians just because they had passports from Eastern Block countries. He is survived by daughters, Margaret and Barbara, an ex-wife and step-daughter, all of California; a host of nephews and nieces – he was "the Unc" – and many devoted personal attendants. More information about Selfridge's life is available online, at Wikipedia, at his daughter Barbara's Facebook page, and through the American Mathematical Society. Selfridge's body has been donated to medical science, and there will be a memorial at 4 p.m. Saturday, Nov. 13, at Anderson Funeral Home, 2011 S. Fourth St., DeKalb. For information, visit www.AndersonFuneralHomeLtd.com or call 815-756-1022. In lieu of flowers, donations of any size can be made, tax-deductible, to The Number Theory Foundation, Math Department, Dartmouth College, Hanover, NH 03755.
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Services Provided By
Anderson Funeral Home
2011 S. Fourth St.
Dekalb, IL 60115
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Group of 10 Memorial Trees Cluster of 50 Memorial Trees Grove of 100 Memorial Trees Eco-Friendly Memorial Trees

Group of 10 Memorial Trees

Cluster of 50 Memorial Trees

Grove of 100 Memorial Trees

Eco-Friendly Memorial Trees

Product Description

About Memorial Trees

Honor a loved one by planting trees in their memory. Trees are planted in a forest with the greatest need, at the best suitable time (typically spring or fall), by a team of certified arborists.

Your Sympathy Gift Includes:

  • A digital certificate, customized with your message, that can be printed for your records or given to the family.
  • An entry in your loved one’s guest book, noting your contribution.
  • A listing in a memorial tree registry, showing that trees were planted in honor of your loved one.

Why Plant Trees?

This memorial tree planting will assist in reforestation, improve forest health and area watersheds, and provide a critical habitat for threatened and endangered wildlife.

By planting memorial trees, you not only honor the life and legacy of your loved one — you also help to preserve our beautiful national forests for generations to come.

Sku: tre-tim-10

About Memorial Trees

Honor a loved one by planting trees in their memory. Trees are planted in a forest with the greatest need, at the best suitable time (typically spring or fall), by a team of certified arborists.

Your Sympathy Gift Includes:

  • A digital certificate, customized with your message, that can be printed for your records or given to the family.
  • An entry in your loved one’s guest book, noting your contribution.
  • A listing in a memorial tree registry, showing that trees were planted in honor of your loved one.

Why Plant Trees?

This memorial tree planting will assist in reforestation, improve forest health and area watersheds, and provide a critical habitat for threatened and endangered wildlife.

By planting memorial trees, you not only honor the life and legacy of your loved one — you also help to preserve our beautiful national forests for generations to come.

Sku: tre-tim-50

About Memorial Trees

Honor a loved one by planting trees in their memory. Trees are planted in a forest with the greatest need, at the best suitable time (typically spring or fall), by a team of certified arborists.

Your Sympathy Gift Includes:

  • A digital certificate, customized with your message, that can be printed for your records or given to the family.
  • An entry in your loved one’s guest book, noting your contribution.
  • A listing in a memorial tree registry, showing that trees were planted in honor of your loved one.

Why Plant Trees?

This memorial tree planting will assist in reforestation, improve forest health and area watersheds, and provide a critical habitat for threatened and endangered wildlife.

By planting memorial trees, you not only honor the life and legacy of your loved one — you also help to preserve our beautiful national forests for generations to come.

Sku: tre-tim-100

About Memorial Trees

Honor a loved one by planting trees in their memory. Trees are planted in a forest with the greatest need, at the best suitable time (typically spring or fall), by a team of certified arborists.

Your Sympathy Gift Includes:

  • A digital certificate, customized with your message, that can be printed for your records or given to the family.
  • An entry in your loved one’s guest book, noting your contribution.
  • A listing in a memorial tree registry, showing that trees were planted in honor of your loved one.

Why Plant Trees?

This memorial tree planting will assist in reforestation, improve forest health and area watersheds, and provide a critical habitat for threatened and endangered wildlife.

By planting memorial trees, you not only honor the life and legacy of your loved one — you also help to preserve our beautiful national forests for generations to come.

Sku: tre-tim-x

Group of 10 Memorial Trees

Cluster of 50 Memorial Trees

Grove of 100 Memorial Trees

Eco-Friendly Memorial Trees

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Product Description

About Memorial Trees

Honor a loved one by planting trees in their memory. Trees are planted in a forest with the greatest need, at the best suitable time (typically spring or fall), by a team of certified arborists.

Your Sympathy Gift Includes:

  • A digital certificate, customized with your message, that can be printed for your records or given to the family.
  • An entry in your loved one’s guest book, noting your contribution.
  • A listing in a memorial tree registry, showing that trees were planted in honor of your loved one.

Why Plant Trees?

This memorial tree planting will assist in reforestation, improve forest health and area watersheds, and provide a critical habitat for threatened and endangered wildlife.

By planting memorial trees, you not only honor the life and legacy of your loved one — you also help to preserve our beautiful national forests for generations to come.

Sku: tre-tim-10

About Memorial Trees

Honor a loved one by planting trees in their memory. Trees are planted in a forest with the greatest need, at the best suitable time (typically spring or fall), by a team of certified arborists.

Your Sympathy Gift Includes:

  • A digital certificate, customized with your message, that can be printed for your records or given to the family.
  • An entry in your loved one’s guest book, noting your contribution.
  • A listing in a memorial tree registry, showing that trees were planted in honor of your loved one.

Why Plant Trees?

This memorial tree planting will assist in reforestation, improve forest health and area watersheds, and provide a critical habitat for threatened and endangered wildlife.

By planting memorial trees, you not only honor the life and legacy of your loved one — you also help to preserve our beautiful national forests for generations to come.

Sku: tre-tim-50

About Memorial Trees

Honor a loved one by planting trees in their memory. Trees are planted in a forest with the greatest need, at the best suitable time (typically spring or fall), by a team of certified arborists.

Your Sympathy Gift Includes:

  • A digital certificate, customized with your message, that can be printed for your records or given to the family.
  • An entry in your loved one’s guest book, noting your contribution.
  • A listing in a memorial tree registry, showing that trees were planted in honor of your loved one.

Why Plant Trees?

This memorial tree planting will assist in reforestation, improve forest health and area watersheds, and provide a critical habitat for threatened and endangered wildlife.

By planting memorial trees, you not only honor the life and legacy of your loved one — you also help to preserve our beautiful national forests for generations to come.

Sku: tre-tim-100

About Memorial Trees

Honor a loved one by planting trees in their memory. Trees are planted in a forest with the greatest need, at the best suitable time (typically spring or fall), by a team of certified arborists.

Your Sympathy Gift Includes:

  • A digital certificate, customized with your message, that can be printed for your records or given to the family.
  • An entry in your loved one’s guest book, noting your contribution.
  • A listing in a memorial tree registry, showing that trees were planted in honor of your loved one.

Why Plant Trees?

This memorial tree planting will assist in reforestation, improve forest health and area watersheds, and provide a critical habitat for threatened and endangered wildlife.

By planting memorial trees, you not only honor the life and legacy of your loved one — you also help to preserve our beautiful national forests for generations to come.

Sku: tre-tim-x
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