This was posted on Ancestry about him:
Martin Johnson Sr., a Revolutionary Soldier, drew 400 acres in Hancock County, Georgia in 1790-1800. The 400 acres were in Dry Creek, on record in Clerk's office, Sparta, Georgia.
More on Matrin Johnson Sr.-
Two more children, 1 boy, 1 girl:
In September, Indians came to the farm of Martin Johnson Sr., on Buffalo Creek in a part of Washington County that is now Hancock and catching the two children in a field, attacked and scalped them. The boy was killed immediately but the girl survived long enough to be carried to shelter at Captain Smith's Fort, where she died. Later, the Chief of the Upper Creek Tribe was killed by Martin Johnson, Sr.