Feiga's father was Jacob Golovchiner and not Abraham Ben Simkha Katzenellenbogen. This profile should be amended to withdraw the strange two fathers option. This error comes from a Jacob Weinshall article published in The Jerusalem Journal (in 2001) where, obviously by mistake, the author wrote " the mathematician Katzenellenbogen was the father of my grand-mother Fanny, instead of writing "the mathematician Katzenellenbogen was the father of my grand-mother Tsirlya". IMO Jacob Weinshall reversed by mistake his two grand mothers.
It remains to know who was Feiga's mother....