Karl Frank Hageman
Oct. 4, 1941-June 13, 2026
Pleasanton, CA

Karl Frank Hageman, born October 4, 1941 died unexpectedly and peacefully on June 13, 2026.

He grew up in Crocket, California with his mother and father, Flora and Frank, and his brother Randy, who survives. He raised his family in his forever home-town of Pleasanton. Pinecrest, California, however, was the touchstone of Karl’s life. He and his family spent time there throughout his childhood, and he first glimpsed his wife Jennifer there as she drove past in a Mercury convertible. His children, Lori and Kyle, have a lifetime of memories of summers spent playing in the woods and lake, and Karl cherished the time he was able to spend in Pinecrest throughout his life.

As a father, Karl did not just do for his family. He taught his children, Lori and Kyle, how to do things. This is a legacy of self-sufficiency, curiosity, creativity, ingenuity, and perseverance that he has passed along to his children and grandchildren, Spencer, Mallory, and Lucas. He never believed in traditional gender roles when it came to doing for oneself – he taught his daughter and grand-daughter about electrical and plumbing and he would have taught his sons and grandsons how to cook, if he had ever managed to learn himself; although a macaroni and cheese incident will forever live in the hearts and memories of his grandkids. He loved his dogs and called them each PITA, regardless of their actual name.

His pursuit of all-things-technology was a life-long passion. He got a degree in Mathematics from Cal Poly, learned coding before he even had access to a computer, and was an early adopter of any technological advancement that inspired him. He spent 36 years working in the tech industry, ending his career as a Director with Oracle. Over the last several years, he, Kyle, and Lori have shared a passion for 3D printing, with many hours spent talking about and sharing ideas, challenges, and successes.

Karl was an easy laugh, which was emblematic of his positive and generous nature. He was a dedicated caregiver in all his relationships and was quick to offer assistance to anyone in need. Friend, cousin, brother, son, or grandchildren he greeted everyone with a warm smile and his trademark “Hey guy”. He was a loving partner to Jennifer, his wife of 42 years, who preceded him in death, and to Nancy, his partner of the last 20 years, who survives. He was a sentimental soul, as reflected by his sizable collection of messages and objects created by his children and grandchildren, who have learned from him the wisdom to know that when we hold a memory gently in our hearts it can live forever.

We’ll remember him napping in the sun on the porch of the Pinecrest cabin, a stack of Ritz crackers, 4 remotes, and his iPad with a family chat open on table next to him, and a puppy at his feet.

The family will hold a private celebration of his life after cremation. In lieu of flowers, the family requests donations made to Friends of Pinecrest (friendsofpinecrest.org) or your favorite charity.