I was not able to find much about Jacob Seldin -- this is what I have:
Jacob Seldin, born c1880 in Minsk, Russia, was enumerated in Kings Co. NY in 1920 and in Baltimore MD in 1930.He married c1900 to Mary _?_, who was born c1880 in Minsk.If they are the Jacob and Mary S. Seldin recorded in the Baltimore death records on-line in the Maryland State Archives, they died “1946/10/06“ (6 Oct 1946 or 10 Jun 1946?) and “1943/11/09“ (9 Nov 1943 or 11 Sep 1943?) respectively.They immigrated to the US in 1906 and 1907, respectively.Children from the censuses were: 1. Sarah Seldin, born c1901 in Minsk. 2. Isadore Seldin, born c1908 in NY. 3. Harry Seldin, born c1910. 4. Rebecca Seldin, born c1913.