Family and relatives of Friedrich Wilhelm (William) Mueller and Anna Gulinski, originally from West Prussia/Poland (Thorn/Torun). They emigrated to the US in 1904 and lived in New Jersey until the mid-1950s.
These snapshots, loose in Anna Mueller's album, are part of a set with the other photos of Mrs ? Jeffard? -- she is wearing the same dress and the film roll numbers on the back match. Those photos say June 1925 Jersey City.