https://www.familysearch.org/ark:/61903/3:1:3Q9M-C9PT-X9ZV-R?i=600&...
Paul left the US in 1905 and returned in 1906. On the above passenger list (line 22) , it says he is married to Ona, is a US citizen, and previously resided in the US 1887-1905. His age, 40, confirms he was born (or believed he was born) in about 1865-66.