It's interesting following the strands that one picks up

Ernst Trump,b. 1901 Germany , a boarder in the 1930 census turns out to be a cousin of Marie Frey from the entry details, but then turns up on a ship manifest in 1935 married to a Gladys b.1901 (now an American citizen)

,could this be Gladys Frey , well the dates all fit. Address given as Richmond Hill. Paperwork appears to have been done in Washington.Even more curious Ernst Trump turns up on the social records as an American citizen dying in Germany 1988 while a Gladys Trump appears dying in Germany in 2000. It looks like they both returned to Germany in old age. Both records recorded by American consulates.
Meanwhile Frederick Breuninger, remember him

, the cousin of Hilda in the 1920 census , well he arrived in 1895, age 17, I wonder what part of the family was already in New York for him to stay with? I wonder while George/Adolf and Marie Frey emigrated to England in about 1882 , another strand headed for the States.
Frederick turns up again in 1955 with wife Elizabeth on a ship manifest, address 52, 5th St West Sayville NY returning from a visit to Germany . Finally Frederick is on the social records recorded as dying in West Sayville , New York in 1970.
What an amazing amount of connections starting from one record of Hilda Frey on a ships manifest in 1912

The only shame is that I have thrown just about every name into the Rootsweb search but nobody else appears to have logged any of these people

Richard.