The phrase "aftermath of him" is not correct and does not convey a clear meaning in written English.
It may be intended to refer to the consequences or results following someone's actions, but the phrasing is awkward and unclear.
Example: "The aftermath of him leaving the company was felt by everyone in the team."
Alternatives: "consequences of his actions" or "results of his departure."
Oct. 11, 2016, 6 27 p.m. Donald Trump said Tuesday that when he tweeted that his shackles had been removed, he was referring to the establishment Republicans -- especially House Speaker Paul D. Ryan -- who are deserting him in the aftermath of recordings emerging of him speaking crudely about women.
Four of his eight college roommates died in combat; that, as well as seeing the aftermath of battle, persuaded him to dedicate his life to helping avoid war.
Giuliani's performance in the aftermath of September 11 earned him many accolades and resurrected his political prospects.
Declared by Wired to be "the best political comedian you don't know yet," Kondabolu, whose parents are Indian Hindus, came of age during 9/11, the xenophobic aftermath of which shaped him.
But in the aftermath of Gettysburg, words failed him.
Even George Washington had angry mobs surrounding his house in Philadelphia to denounce him for the Jay Treaty with Britain dealing with the aftermath of the Revolutionary War; they wanted him to side with France.
3.28am GMT Christie says a lot of people in the aftermath of the hurricane have asked him for hugs.
In the early 20th century Casals visited Russia many times, but the violent aftermath of the Bolshevik revolution shocked him.
His lawyer, David M. Oddo, said Mr. Delayo supervised crane operations at ground zero in the aftermath of the 9/11 attacks, causing him to suffer a severe pulmonary illness.
Another officer testified that in the aftermath of the hurricane Warren told him that looters "were all animals and they deserved to be shot".
