California Lost Ancestors

I would like to submit several lost siblings to my great-grandmother, Magdalen Johanna ENGELN RICE. I have made no progress on this line, mainly because they have moved out of the state of Wisconsin and most of the info I get is third-hand..nothing concrete for me to go on that leads anywhere.
John J. (Johann) ENGELN: b. June 1876 to Wilhelm ENGELN and Catherine IRSFELD in Milwaukee, Wisconsin. His occupation in 1900 was a printer. He is said to have gone to California ( LA ?) by 1951..most likely much earlier.

Frank J. ENGELN: b. April 1882 to Wilhelm ENGELN and Catherine IRSFELD in Milwaukee, Wisconsin. He married Mary ? Was living in Milwaukee in 1922. No other info.
(Have tracked another Frank Engeln to Washington State, but dates don't match).

Anna ENGELN MASTOPEITRO: b. July 1885 in Milwaukee, WI. to Wilhelm ENGELN and Catherine IRSFELD. She married Louis E. Mastopeitro, a tailor, who is said to have been a tailor for Bob Hope. His father was Carl Mastopeitro. They were married in August 1917 in Milwaukee, WI.
Moved to Southern California, date unknown, and had two known children: Carl (changed name to MASTON and became an architect) and Katherine. Possibly buried in the LA/Hollywood area.

Catherine/Katherine ENGELN GABEL: b. April 1889 in Milwaukee, Wisconsin. Married Harry GABEL who managed the tabacco concession at the Palmer House (Chicago, Illinois). She clerked at the main Marshall Field store. Moved to Orlando, Florida and one of them is said to have died in 1974. (not confirmed).
Sally in Wisconsin (Go Packers!)
Email Sally at: Sallia@aol.com
Family Genealogy Web Site:
Legacy: A Family History
http://members.aol.com/Sallia/Legacy/familyhistory.htm