Dorothy Jane Mayercheck Obituary
With solemn hearts, we announce the passing of Dorothy Jane Mayercheck in Placentia, California, whose presence will be deeply missed, having departed on March 28, 2026 at the age of 96. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.
She was predeceased by: her parents, Stephen Onusko and Anna Onusko; her husband Charles Mayercheck; and her siblings, Lucille Onusko, Theresa Pocratsky and Eugene Onusko.
She is survived by: her children, Robert (Coleen), Carleen Koscielak (David) and Curt (Penny); her grandchildren, Kelley Maslin (Alex), Lisa Boyajian (Michael), Brian Koscielak (Francesca), Eric Koscielak (Nicole) and Laurie Baddon (Chris); and her great grandchildren, Luke, Olivia, Isabella Maslin, Madison, Harper Boyajian, Niccolo, Chiara Koscielak, Lucas Koscielak, Makena and Hayden Baddon.
In lieu of flowers, donations may be made in Dorothy's name to the Parkinson's Foundation.
