Familysearch.org has a number of records for Ruben. It is a free site. Here is one to get you started
"Massachusetts Births and Christenings, 1639-1915", database, FamilySearch(https://familysearch.org/ark:/61903/1:1:VQ6H-GT5 : 15 January 2020), Reuben Mc Farland, 1759.
His parents are
Alexander McFarland and Jean Harper. Alexander names Reuben in his will. An image can be found on Ancestry
This one?
https://www.ancestry.com.au/sharing/19940516?h=68b0d0&utm_campaign=bandido-webparts&utm_source=post-share-modal&utm_medium=copy-url