On 9 Sep 1885 when Frederick Vantile was 20, he married Margaret J. Humphreys in Trumbull County, Ohio. Born on 30 Nov 1861 in Wales. Margaret J. died in Willoughby, Lake County, Ohio, on 14 May 1934; she was 72. They were divorced.
1900 Federal Census. Cleveland Ward 38, Cuyahoga County, Ohio
Roll 1259, page 22 B
748 Clark Avenue
Margaret J. Platt, head, b. Nov 1862, 37, divorced, b. Wales, father b. Wales, mother b. England, imm. 1881, janitress, church
Mary A Platt, daughter, b. Aug 1887, 12, b. OH, father b. OH, mother b. Wales
Maude E. Platt, daughter, b. Sep 1889, 10, b. ditto
Walter C. Platt, son, b. Nov 1892, 7, b. ditto