I show Henry Halfacre as the son of Isaac Halfacre, possibly of Maryland but found in Washington Co., VA, in 1820. Am working with my brother on this line; am contacting him to find out where we got Isaac information. Can you link Jacob, Frederick or Michael Halfacre to Henry or Isaac; they were all neighbors in Washington Co., VA, in 1810. Isaac showed up there in 1820 but was gone by 1830. An Isaac Halfacre was found in Kentucky in 1830; don't know if it is the same guy or not.