Katrina Hrelec Kaiser, 58, of Center Township, sweet and cherished wife, daughter, sister, and aunt, passed away on September 5, 2018, at UPMC Presbyterian Hospital after complications from cardiac surgery.Katrina was trained as a dental assistant at Median School for Dentistry and worked in several capacities throughout her life, the most recent as Office Manager for Dr. Pam Crumrine. Trina enjoyed so many things – traveling with Joe, dancing, decorating for Christmas and every other holiday, bestowing gifts and raisins on her nieces and nephews and their children, socializing at the Croatian Club, tending to her flowers and plants, and shopping for and wearing her signature bling. She was a generous and fun-loving hostess in her beautiful home and was always kind and cheerful even through bouts of illness and other hardships. Trina was also a faith-filled parishioner of St. John the Baptist Church in Monaca.Katrina is survived by her loving husband of 7 years, Joseph Kaiser, and her adored father, Charles Hrelec. She was the beloved sister to Cynthia (Dennis) Novotny, Charles (Sandra) Hrelec, Suzanne (Phil) Knox, Jeanne (Tony) Ciaccia, and Martina (John) Markowicz and was the daughter of the late Jean (Domitrovich) Hrelec.Sharing Joe’s loss in his family are his siblings; Jenny (Ernie) Dambaugh, Kristie Kline, and Mike Omstead; stepchildren; Julie (Pat), Aaron (Maggie), Holly (Ryan), Joey (Jessica) and their ten children; Nina, Evan, Audrey, Westley, Brynna, Grant, Treat, Addie, Ethan, and Joel.Trina was the dear Aunt Fox to her “children and godchildren”, her eighteen nieces and nephews; Katrina (Kirk), Marti (Paul), Aimee, Becky, and Little Den, Chuck (Gia), Jason (Laura), and Candace (Mike), Gabriel (Lucy), Justin (Cherie), and Amber (Hunter), Antonio (Jessica), Veronica (Erik), and Joseph, Jessica (Justin), Victoria (Jerry), Angela (Bryan), and Allie.Also missing her are twenty two grand nieces and nephews; Cynthia, Elyse, Braylen, Charlie, Carina, Noah, Jacob, Isaac, Abigail, Selah, Hadassah, Elena, Henry, Cora, Colton, Birdy, Ollie, Franco, Marco, Maverick, Eva, and Frankie.Family and friends will be received on Friday, September 7th from 2:00 to 7:00 pm to pay their respects in the Simpson Funeral & Cremation Services, 1119 Washington Avenue, Monaca. A blessing service will be held at 7:00 pm with Father Michael Ruffalo officiating.In lieu of flowers, memorial contributions may be made in Trina’s memory to Ronald McDonald House charities.To share online condolences, get directions and other information, please visit simpsonfuneralhome.com.