Diane Brown Seguin

Diane Brown Seguin of Longmont, Colorado, passed away peacefully on February 4, 2026, at the age of 90. Born on December 5, 1935, in New York State, Diane lived a life full of love, creativity, and joy.

A beloved wife, mother, grandmother, and friend, Diane shared her many talents with those around her—baking wedding cakes, sewing, preparing homemade meals, and singing in her church choir. She expressed her vibrant spirit through dance with the Dancing Divas, and her rhythm in a local drumming group. She also proudly delivered meals to the elderly with Meals on Wheels for four years. Diane had a deep love for cats. Her most favorite was named Henry and he lived to be 20 years old.

Diane worked for many years as a waitress, always greeting people with kindness and a smile. She cherished traveling with her husband, Jerry, creating treasured memories along the way.

Diane is survived by her husband, Jerry; her children Gary Brown (Lisa), children Marcus (Tessa) and Allison; Dale Brown (Anita), children Isabel Carter (Austin) and Andrew; Neil Brown (Kathy), children Mason (Julie) and Chelsea Lunsford (Kyle); Julie Brown; and Amy Demeuse (Dan), children Justin and Connor. She was also blessed with great-grandchildren Alyas and Atreus Brown, sons of Marcus and Tessa Brown.

Diane will be lovingly remembered for her laughter, her creativity, and the love she shared with all who knew her.

Diane’s funeral service will take place at Guardian Angels Catholic Church (109 3rd St, Mead, CO 80542) on Friday, February 20, 2026. There will be a viewing from 10:00 AM until 10:30 AM, a rosary from 10:30 AM until 11:00 AM, and a funeral mass from 11:00 AM until 11:45 AM. Diane’s ashes will be laid to rest on Thursday, February 26, 2026, at Foothills Gardens of Memory Cemetery (14241 N 107th St, Longmont, CO 80504) at 2:30 PM.