Gilbert Stevens Tabor Jr is in the 1930 census for NY, Dutchess County, North East Twsp (Millerton Village): Head: George S. Tabor age 31 married at age 23 b. NY/parents NY occ: Physican-Medical Veteran=yes WW wife: Grace B. age 29 married at age 22 b. MA/f-Scotland/m-NY son Gilbert S J age 6 b. CT/NY/MA
Father Gilbert Stevens Tabor filed a WWI Draft Card in Dutchess County NY Sept. 6, 1918: living Dover Plains, Dutchess Co. NY age 20, b.Aug. 17, 1898, white, native born, Medical Student at Bellevue Hospital Medical College, nearest relative: George P. Tabor (father) Dover Plains, NY Tall, Slender, Eyes: Blue, Hair:Brown
The middle name Stevens is Gilbert Jr grandmother's maiden name. Grandmother May Stevens, her mother Annie Stevens is listed as mother in law in 1900 to 1920 NY Dutchess Co. Dover census. I don't know if Gilbert Jr had siblings, but he had uncles Hiram T. b. abt 1906 and Stevens G. b. abt 1904. Hiram is married with children and still living in Dover in 1930 census.