Pennod 6 "The New York Gymanva", Rhan 2, y llyfr "One Hundred Years of Welsh Calvinistic Methodism in America":
"Churches in Lewis County, New York",
"The New York City Church and Presbytery",
"The Churches in New York City",
"William Rowlands, D.D.",
"The Eastern New York and Vermont Presbytery".

Gyda diolch i Wales-PA, mae’n bleser gan Sarah Fenno Williams
ac Edith Tuckerman Williams, wyresau’r Parchedig Daniel Jenkins
Williams, Ph.D., D.D., weld ei gyfrol, "One Hundred Years of Welsh
Calvinistic Methodism in America", a gyhoeddwyd yn wreiddiol ym
1937, ar gael arlein.