Your posting was VERY old, you probably have the answer by now, if not, I'll provide:
John Reynold Baker (21) married Margaret Belle Binnington (17) on 19 March 1919 in Salt Lake City, UT.
--The 1910 Census for Salt Lake City, UT has Margaret, age 9, living with parents Harry, 31; and Nettie, 30; with sister, Georgia, age 3.
The 1920 Census for Franklin, Franklin County, Idaho
Raynold (sic) J. Baker, age 21(1898/1899), born in ID to father born in Utah, mother in Wales, farmer/general farm.
Margaret B, 18(1901/1902), born in Utah to father born in Missouri, mother in Utah
Bennie Raynold, son, age 1/12. (Census enumerated 20/21 January, so Bennie born about Dec 1919.
The 1930 Census for Tooele, Tooele County, UT
John R. Baker, age 32, born in Idaho to both parents born in UT, Manager/Dairy Co. Age at first marriage 21 (about 1918/1919)
Lillian, 26, born in UT to both parents born in UT, age at first marriage 19 (about 1922/1923).
Wilford, age 10 (1919/1920) born in UT (THIS is "Bennie").
Darlene, 3 (1926/1927), UT.
--This Lillian was Lillian Mae Kelly (1906-1988). Darlene May Baker, born 11 Feb 1927, died 18 June 1995 in Salt Lake Co, UT. She married Bartholomew Michael Stalliviere on 29 Mar 17 in SL Co.
--John remarried to Rena Nelson (1914-9 May 1989) on 16 Feb 1953 in Provo, UT.
Margaret remarried on 30 June 1927 to Andrew Peterson in Salt Lake City, UT
"Bennie" was a nickname for Wilfred Reginald Baker, born 29 Dec 1919 in Franklin Co, ID. He died 8 June 2008 in Placer Co, CA., buried in the New Auburn Cemetery, Placer Co.