Cap Gabriel Long born in 1751 died Feb 2, 1827, in Culpeper VA and Tobias Long b/ 1721 Maryland died before Feb 24, 1773, in Guilford NC
This is an old problem with family research adding unproven names to our ancestors
Edward Long son of Tobias Long name is Edward nothing more and his son Solomon is Solomon, not Edward Solomon
There are hundreds of these family trees online with these two men mixed as one What a mess on our Long Families
There is some very good research on Gabriel Long whois not related to Tobias Long