I have researched three SEYLER / SEYLOR / SEILER / SAILER / SAILOR / SILER Families in Western Pennsylvania:
Family No. 1.My ancestor Katherina SEYLER (1832 ? 1886) was born in Germany and came to the USA in 1848 with her family.Her mother had died in Germany and her father died of three strokes in Erie PA shortly after arriving.She had three sisters (Margaret, Caroline, Elizabeth) and two brothers, one unnamed and DANIEL (born abt 1827).She married Johann Adam Wagner in 1850 and moved to Washington County OH.
Family No. 2.Daniel SEYLER (born abt 1827, Bavaria) married Ann Fry (b abt 1832, Mercer Co PA).Daniel was a coal miner, first in Hickory and West Salem, Mercer Co PA, then in Oskaloosa, Mahaska Co IA.Daniel and Ann had four children:
1.George W. (1850 ? 1926) married abt 1875 Ida. B. (1856 ? 1910).He was a farmer in West Salem Twp Mercer Co PA.George. and Ida had twochildren:i.Charles Franklin (1878 ? 1946) married abt 1910 Margaret (1885).Charles was an automobile mechanic in West Salem Mercer Co PA.Charles and Margaret had four children:Isabel (abt 1911), Margaret (abt 1913), Charles (abt 1915), Earl D. (1925-1989).ii.Clara Pearl (1883),
2.Charles M. (1852 ? 1922) married Ida Rebecca Speir (1852 ? 1911).He worked in a steel mill in Youngstown OH.Charles and Ida had one child Olivia M. (1877-1963), a teacher in Youngstown.
3.Sarah M. (abt 1857).
Sources:United States Censuses and others.
Family No. 3.Daniel SEYLER came to Mercer Co PA from Germany, but his wife had died there.He had a son Jacob who married Elizabeth Saylor (no relation).Jacob and Elizabeth had a son DAVID SEYLER (1854-1920) who married Florence Emily Simkins.In early life David was a coal miner and later a farmer on the West Salem Twp homestead “Paradise Glen Farm.”David and Florence had three children:Minnie Gertrude (1883 ? 1883), Arthur David (1892 ? 1934) who married Mildred Diefendorfer, and Ethel Gwen (1894).
Source:White, John G.A Twentieth Century History of Mercer County, Pennsylvania, 1909,
The similarities among these three families suggest a connection.Anyone with further information, especially information that might prove or disprove a connection, please contact me.