Treat Williams' bond with his daughter, Ellie Williams, is evident on social media, with the actor making several appearances on her Instagram even before her emotional tribute. In April, Ellie posted a photo of the two spending the day at Universal Studios Hollywood. Moreover, Treat often commented on his daughter's posts and made touching posts of his own. Days before his death, Treat posted a photo of Ellie on his Instagram, writing, "I miss you daughter" in the caption. Ellie commented back that she loved him too.
Shortly after Treat's death, Ellie posted a photo of the two together on her Instagram story and said (via Page Six), "This is a pain I have never felt, I am absolutely shattered." On her first Father's Day without Williams, she shared a photo of him in her Instagram story and wrote, per People, "I love you, Dad, I miss you."
In July, Treat's wife, Pam Van Sant, candidly spoke to the Daily Mail about how she and her two children were doing after Williams' death. She told the publication, "We're very sad, but we're a strong family, and we'll carry on." Van Sant went on to thank the people who have expressed their condolences and added, "We will continue to live each day to the fullest with compassion for others in honor of my husband, our beloved Treat, and the kids will carry on his legacy of joy and craftsmanship in their artistic careers."