Origin
Millionaire, owner of Horton Chemicals after death of her husband, Theodore Horton. Murdered. In her last will gave most of her money and firm ownership to Oliver Queen. Mother of Cynthia Horton and Theodore Horton, Junior. Her brother was Maxwell Stein.
Creation
Abigail Horton was created by Dick Giordano, Mike W. Barr and Trevor Von Eeden for their mini-series Green Arrow.
Major Stroy Arcs
Green Arrow
Before Oliver Queen was stranded on Starfish Island and became Green Arrow, he was a rich playboy. At this time in his life he met the recently widowed Abby, a woman 30-40 years his senior. The two hit it off as friends, and even though the tabloids speculated more, friends were all they were.
Then Oliver met Abby’s daughter, Cythnia and started courting the rich daughter. Their relationship didn’t last, due to the pair having nothing in common, and when thy broke up Oliver left Star City for a cruise. (This is where he became Green Arrow).
Years later after Oliver returned, he lost his fortune and Abby offered to help him financial, but Oliver couldn’t except the gift. Then a year later, Abby died.
It was ruled natural causes, but Oliver was suspicious, when he found her wedding ring in her hand and her will, which she just changed 2 days before her death, naming Oliver the prime benefactor.
Abby knew she was going to be murdered over her husband’s last invention, a syndetic form of oil. She left the ring as a clue to her killer, Big Oil, who wanted to keep the invention off the market. Abby wasn’t sure was going to kill her, but she didn’t trust her kids nor her son in-law, Gerrold Sinclair, the last who was the one that murdered the Horton Chemical heiress.