I hope this person is the "one" you seek? His middle name was Elliott and that was also his mother's maiden. Per WWI Draft Card in Buena Vista, IA, he was born in Wernersville (Berks County), PA on 3 Nov 1893. Must have been highly intelligent 'cause he was a college chemistry professor at age 24? His wife's not identified on draft card and I failed to find him in 1920. In 1930 Oklahoma, he continued teaching at Panhandle A & M College. Same person 'cause SSDI confirms issuance of SSAN in Oklahoma. He was enumerated as divorced in 1930. Parents were: Rev. Robert Proctor Preston (14 May 1858 - 11 Apr 1928) and Anna Ella (nee: Elliott) Preston (26 Aug 1862 - 11 Aug 1925). Both parents have find-a-grave memorials in Knox County, TN. Siblings: Rev. William Hall Preston (28 Feb 1896 - 20 Oct 1987) died Harris County, TX and Edwin Smith Preston (27 Apr 1901 - 24 Sep 1978) died in Wake County, NC. Both have find-a-grave memorials.