Stephen COLLINS (1744-1825; s/o Joseph COLLINS m. Lucy MARCHBANKS) was brother of my Lucy COLLINS (est.1747-aft.1809) m. Dr. Nathaniel ABNEY (ca.1728-1787). Stephen was one of the two COLLINS’ who witnessed Edward DEAN’s will.
Now the Lucy who m. Dr. Nathaniel ABNEY was a COLLINS. She was a d/o Joseph COLLINS m. Lucy MARCHBANKS. Dr. Nathaniel ABNEY’s sister, Cassandra ABNEY m. Dannett ABNEY (s/o George ABNEY m. Unity) whilst his other sister, Rebecca ABNEY m. Edward DEAN. Therefore, Lucy COLLINS (m. Dr. Nathaniel) was sister-in-law to Dannett ABNEY, Cassandra ABNEY (his wife), Edward DEAN, and Rebecca ABNEY (his wife). For this reason, Lucy COLLINS ABNEY was aunt to Samuel ABNEY (s/o Dannett ABNEY m. Cassandra ABNEY)…NOT aunt to George DEAN.
Now, we know Edward DEAN m. Rebecca ABNEY had issue: John (ca.1743-1777), Julius (b.ca.1744), Edward Jr. (ca.1747-bef.1782), Joshua (ca.1750-1801), Charles (b.ca.1753), and William (ca.1760-ca.1840). But there were probably other children.
Firstly, Which William DEAN do you presume was the father of your George DEAN? There were several William DEAN’s in the early generations. I do not know, nor do I say that Lucy COLLINS (wife of Dr. Nathaniel ABNEY) was aunt of George DEAN. IF George DEAN was s/o Edward DEAN…then she was. However, if a s/o William DEAN, she was not. Until you can workout the relationship of George DEAN in the DEAN family, we cannot know.
Secondly, are you certain Capt. Nathaniel ABNEY was the purchaser of the land in Wilkes Co., GA in 1773? I don’t believe Capt. Nathaniel ABNEY ever lived in Georgia. Having settled in Edgefield Co., SC I don’t believe he ever left. This is not to say he couldn’t have owned the land in Wilkes Co, GA. But this is the first I’ve heard of it. Please tell me if you’re certain this land was owned by Capt. Nathaniel ABNEY. I’d love to add this bit of information to my timeline. Dr. Nathaniel could also have owned the land. His son, Joseph ABNEY bought land in Georgia (Liberty Co.) This is not to imply Capt. Nathaniel ABNEY wasn't the owner of the Wilkes County land...I'm just curious how you know this.
Now, as concerns your Mahala “Mahaley” ABNEY, she was NOT a d/o Capt. Nathaniel ABNEY. Her parents were Nathaniel ABNEY (1786-1851) m. Eleanor BOULWARE (1787-1836). Nathaniel’s parents were Dr. Nathaniel ABNEY (ca.1728-1787) m. Lucy COLLINS (est.1747-aft.1809). I don’t know if you got the Nathaniel’s confused or not.
There was still other Nathaniel ABNEY’s: Pvt. Nathaniel ABNEY (ca.1757-aft.1810) was a s/o of Pvt. Michael ABNEY m. Ann TURNER. Pvt. Michael was a s/o George ABNEY m. Unity.
Nathaniel ABNEY Jr. (1790-1868) s/o Pvt. Nathaniel.
Nathaniel ABNEY/ABNER (the Loyalist, dates unknown). This is a fairly recent realization. I thought “the counterfeiter” was a known Nathaniel ABNEY. However, my discussions with another researcher made me realize this Nathaniel ABNEY was counterfeiting to destabilize the currency of Virginia. He wasn’t doing it for his own profit. He was doing it because he was a Loyalist. Having used the surname ABNER as well as ABNEY, I believe he comes from the Paul ABNEY (bapt.1699) line. He was probably Paul’s grandson…and a son of John ABNEY/ABNER.
I hope this helps. Please let me know which William DEAN you believe to have sired your George DEAN.