I am looking for Frederick Kueck & was once asked if he might have had a brother Diedrich. In researching I came across Diedrich b abt 1901 came to NY 6/26/1923 [single] another arrival in NY 9/10/1927 with wife Caecilia. Also found Diedrich became US Citizen 4/18/1933. Just passing this on in case it is of use to you. My Frederick seemed to live around the same area as this Diedrich & had a wife Adele that died abt 1930/31 so he very likely remarried but the family wasn't sure. He had 2 children with his first wife. If this rings any bells I'd appreciate hearing from you. Thanks