Diane Passmore Schwartz, 61, of Pasco, passed away February 23rd, 2019 with her family by her side. Diane was born to the late Robert and Arla Passmore in Kennewick, WA where she spent her childhood with her sister and two brothers. Diane graduated from Kamiakin High School in 1975 and received an Associate Arts degree from Columbia Basin Community College in 1978. She also attended both Eastern Washington University and Washington State University. Diane worked at Energy Northwest for twenty-two years. She married Mark Schwartz in 1980 and they lived together in Pasco, WA for thirty-eight years. Diane and Mark were blessed with two children. She was a loving and devoted wife and mother. She loved spending time with her family, gardening, and walking about the neighborhood chatting with friends. Diane is survived by her husband Mark, daughter BreAnne Souza (husband Stephen Souza), son Derek Schwartz, sister Carol Clark, brothers Robert Passmore and Mark Passmore, mother-in-law Betty Jean Schwartz, and five sisters-in-law. Special thanks to Aida Schneegans for her love and care. A viewing will be held on Friday, March 8th, 2019 from 5-8pm at Mueller's Tri-Cities Funeral Home with a Rosary beginning at 6pm. Funeral Mass will be held on Saturday, March 9th, 2019 at 11am at Saint Joseph's Catholic Parish Church. The burial will take place at Riverview Heights Cemetery at 12:30pm, and reception will immediately follow at Saint Joseph's Dillon Hall.