Arnold Koslow

Resident of Livermore

Arnold “Arnie” Koslow was born in Brooklyn, NY, to parents Irving and Rose Koslow. He attended City University of New York and Brooklyn College, and had a 48-year career with General Electric/GE Nuclear Energy before retiring.

Arnie enjoyed researching family genealogy, and took many trips with his wife tracking down family history in graveyards and historical libraries. The time they shared and the memories made on these trips can never be forgotten. After retirement and at the urging of his wife he joined the genealogy society and started volunteering at the Pleasanton Library.

Arnie enjoyed everything family-related, from coaching his daughters in softball and watching them dance when they were young, to being right there supporting them when his girls became horse crazy. He learned how to saddle a horse and stack hay. When they decided to raise livestock, he earned the nickname “The Brooklyn Cowboy.”

After being in a family primarily of women, Arnie finally got his buddy and best friend when his grandson was born. Arnie loved talking sports history and traveling with him to spring training, visiting Coopers-town and the Basketball Hall of Fame. He was his grandson’s #1 fan and attended as many games as possible.

He was an avid sports fan of the Brooklyn/LA Dodgers, the San Francisco 49ers, and the Golden State Warriors; however, we couldn’t turn him into a soccer fan even after the countless hours of watching his granddaughter play the sport.

Arnie was the host of all hosts and loved having all of his family over for holidays. His door was always open to family, friends, neighbors and sometimes strangers. He was always kind and always lent a helping hand. He led by example and is the true definition of a Good Man!

Arnie is survived by the love of his life and best friend Nancy, with whom he recently celebrated their 45th wedding anniversary, daughter Amanda, her husband Mario Martinez, daughter Melanie, her partner Darryl Gray, grandchildren Brittany and Dylan, his sister Eileen Levy and her family, his mother-in-law Marjorie Hill, and dozens of extended family and friends.

The family would like to thank the wonderful staff at the ValleyCare Skilled Nursing Facility in Livermore not only for their recent care of Arnie but also for the love and care they provided the family.

Services were held on July 3, 2019, and Arnie is laid to rest at Roselawn Cemetery in Livermore.

Callaghan Mortuary is honored to be serving the Koslow family. An online guestbook is available for condolences at