Meryl may have been mentioned more than God in Oscars acceptance speeches over the last decade, but at the 2012 Academy Awards, it was her husband who received a sweet shout-out.When Meryl won best actress for The Iron Lady, she said, "First I'm going to thank Don because when you thank your husband at the end of the speech they play him out with the music, and I want him to know that everything I value most in our lives you've given me." The pair first met after her partner John Cazale — of The Godfather and The Deer Hunter — died of bone cancer.Except this, there is no any known affair or boyfriend of Mammie Gummer.Mamie Gummer is busy in acting and she is also involved in charities such as Women’s Refugee Commission and the Nomi Network.
It seems they are currently single but without the clear evident, this cannot be confidently said.
Her most recent work was on television in the series The Collection in the role of Helen Sabine.
Mamie Gummer is still active on Broadway where she was nominated for Drama Desk Award for Outstanding Actress in a Play for her performance in Ugly Lies the Bone in 2015 where she appeared in the role of Jess.
Mamie Gummer began to land in several leading roles in different films and television series.
Some of her noted performances are in the films Evening (2007), The Ward(2010), Side Effects (2013) and Ricki and the Flash (2015).
But she was there, seated in the front of a car with her new partner, Norm, pursuing Elliot and Irving as they sped towards the Red Wheelbarrow.