It may be possible to confirm family relationships with Aaron by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree:
Ron Vincent :
Family Tree DNA Y-DNA Test 111 markers, haplogroup I1, FTDNA kit #B3604 +
Y-Chromosome Test 111 markers, haplogroup I-Z63
It is likely that these autosomal DNA test-takers will share DNA with Aaron: