We found another spelling of our surname that is new to me. Kyncatke. According to the book "Place Names of Stirlingshire" it was used in 1550. Kincaid (Lennoxtown). 1238 Kincaith, 1550 Kyncatke* G. cinn (locative of ceann) cadha, " at the head of the pass." http://www.archive.org/stream/placenamesofstir00johnuoft/placenamesofstir00johnuoft_djvu.txt Don W. Kincaid