Semple, William Alexander. Genealogical History of the Family Semple: From 1214 to 1888. (Hartford, Connecticut: Press of the Case, Lockwood & Brainard Co., 1888), Page 53.S1
268. Alexander Semple, second son of John Semple of Cartside, married Mary Brodie of Dampton farm, and by her had issue:S1
"Scotland, Births and Baptisms, 1564-1950," index, FamilySearch (https://familysearch.org/ark:/61903/1:1:FQMT-WV9 : accessed 11 June 2015), Alexander Sempill, 31 Jan 1749; citing KILBARCHAN,RENFREW,SCOTLAND, reference ; FHL microfilm 0844775 IT 2.
Name: Alexander Sempill Gender: Male Christening Date: 31 Jan 1749 Christening Place: KILBARCHAN,RENFREW,SCOTLAND Father's Name: John Sempill Mother's Name: Jane Stevenson