Are you familiar with Diana Miller? I had a message from her about a book she ran onto, "Emigants to Pennsylvania". She said page 152 mentions Nathaniel Ambler assigns Thomas Dillon (a servant from Ireland in the snow George) to Benjamin Gilbert of Bucks County Yeoman, for five years from August 2nd 1746. Is this of help?

She is looking for a Benjamin Dillon who received a land grant in 1790.
Mary Jane