Samuel was born about 1702 and died in 1745.
From Prairie to Palestine: The Eva Marshall Totah Story By Lyla Ann May Here's a quote from it on Google Books: "Virginia: Samuel Lancaster (1702-1745) Robert's son Samuel was born in 1702 in Surrey County, Virginia. In 1730, Samuel Lancaster married Elizabeth Ellis (1713-1759). She was born in Surry, Virginia and died February 11, 1759 in Sussex, Virginia. She was the daughter of Benjamin Ellis (b. 1688 and d. 1759) and ... Link for above quote: https://books.google.com/books?id=NDcIVQ1dHAwC&pg=PA355&lpg=PA355&dq=Samuel+Lancaster+1702&source=bl&ots=6HBWhbZfED&sig=50d9ngnrY9Q3_86qsItkpuDyjhU&hl=en&sa=X&ved=0ahUKEwjR4OGenZzaAhVQbK0KHQfcAcgQ6AEIMjAC#v=onepage&q=Samuel%20Lancaster%201702&f=false or:https://books.google.com/books?isbn=1469197898
No documentation listed to prove that his mother's maiden name was Clary. Also, his mother is shown, I believe in error, to be married to another Robert Lancaster. More research needs to be done to correct this.
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Featured National Park champion connections: Samuel is 13 degrees from Theodore Roosevelt, 17 degrees from Stephanus Johannes Paulus Kruger, 12 degrees from George Catlin, 11 degrees from Marjory Douglas, 21 degrees from Sueko Embrey, 13 degrees from George Grinnell, 25 degrees from Anton Kröller, 11 degrees from Stephen Mather, 22 degrees from Kara McKean, 14 degrees from John Muir, 14 degrees from Victoria Hanover and 22 degrees from Charles Young on our single family tree. Login to find your connection.
Difference in data to be noted in the biography until a primary source can be added.