In 1958 Alfred Wochenmark, now Alfred Mark, became a partner in the store furnishing company Ott Brothers A.G. in Manhattan, which he took over in 1967.
He was also active in the Jewish community in the USA. Since 1991, he was involved there as an assistant cantor, thus fulfilling late in life at least to some extent his father's wish to have a rabbi son. Alfred Mark died in Florida in 1998 at the age of 71.