Yost nee Bader, Helen Detweiler 9.aug.1898-28.jan.1991 USA Pennsylvania, Phoenixville - Phoenixville
pianist, organist, studied at Peabody Conservatory Baltimore, studied with Camille Zeckwer and piano with Maurits Leefson at Philadelphia Conservatory, studied organ with H Alexander Matthews, she gave many lecture-recitals, 1920 as music teacher residing with her parents at 163 Main Street in Phoenixville, 1930 without profession with husband, 2 children and a servant residing at 912 Virginia Avenue in Phoenixville, 1950 without profession residing with husband and daughter at 235 Manavon Street Phoenixville ; 20.oct.1920 in Chester Pennsylvania she married realtor/real estate broker John Robarts Yost (Phoenixville 20.jul.1889-12.apr.1960 Phoenixville) ; their 3rd child Helen Bader Yost (Phoenixville 8.feb.1932-3.aug.1967 Pennsylvania, suicide by inhaling carbon monoxide from car exhaust in rural Northampton)