i hit a block in my research to link me 100% to a paschal greenhill Leigh and his grandfather Zacharia Leigh.
i belive my answer lies is the unfortunate loss of the 1890 census. that would be the link of John sidney Leigh ( son of William Archer Leigh) to his son William archer Will Leigh.
i have sorces for everyone up to william archer will leigh but nothing linking him to his father John sidney Leigh.
if you can help drop me a line. its always appriciated