An eighth woman has come forward to allege that former president George H.W. Bush groped her, CNN reports.

The date of the alleged incident -- April 1992 -- makes this the earliest claim, and the only such allegation that falls within the timeframe of Bush's presidency, which ended in 1993. At the time, Bush, who is now 93, was 67.

Wishing to remain anonymous, the woman, who is 55 and from Michigan, said she had been at a fundraiser for Bush's re-election campaign with her father in Dearborn, Michigan when Bush grabbed her rear end during a photo-op.

"We got closer together for a family photo and it was like 'Holy crap!'" the woman told CNN. "It was like a gentle squeeze." She thought what allegedly happened to her was an isolated incident until she began reading reports that echoed her experience. CNN reviewed the woman's photo from that time but did not publish it, to preserve her privacy.

"The hand definitely was across the butt. It wasn't across the waist," the woman's ex-husband told CNN, recalling how his former wife told him about the incident shortly after it allegedly occurred.

Jim McGrath, Bush's spokesman, declined to comment.

This allegation comes just two days after NJ Advance Media reported Broadway actress Megan Elizabeth Lewis's claim that Bush groped her at a Houston performance of "Legally Blonde: The Musical" in 2009. The alleged groping happened after Bush asked her to take a photo with him, Lewis said.

"He grabbed my butt and I was like 'wow,'" she said. "I remember being really grossed out."

Josh Campbell, a fellow "Legally Blonde" cast member who worked for six months on the show, told NJ Advance Media that he recalls Lewis telling him about the incident after they took photos at intermission. He also remembered another detail Lewis included in her account that Bush called Barbara Bush "his silver fox" when talking to Lewis.

McGrath, the Bush spokesman, did not respond to a request from NJ Advance Media for comment on Lewis' claim.

Lewis, who lives in Brooklyn, said she was moved to speak out after reading Montclair novelist Christina Baker Kline's Oct. 26 essay for Slate in which she alleged Bush groped her in a similar manner, during a photo op, at a Houston fundraiser organized by Barbara Bush in 2014 (the photo was published along with her story). Bush, she said, asked her if she wanted to know his favorite author. "David Cop-a-feel," he replied, allegedly grabbing her rear end as she posed for a photo with Bush -- who was in his wheelchair -- and her husband.

"There's no question that he knew what he was talking about," Baker Kline told NJ Advance Media, in answer to critics who claimed Bush was somehow mentally impaired or suffering from dementia at the time.

The latest Bush allegation also comes three days after Time reported that Roslyn Corrigan claimed Bush groped her in 2003, when she was 16. The former president, who was not using a wheelchair at the time, had been visiting a CIA office in Texas where her father worked as an intelligence officer.

Actress Heather Lind was the first woman to come forward with a groping allegation on Oct. 24, when she posted on Instagram that Bush had grabbed her rear during a 2014 photo-op at a screening of her AMC show, "Turn: Washington's Spies." A group photo she shared from that day shows Bush with his hand behind Lind.

"He didn't shake my hand," she said. "He touched me from behind from his wheelchair with his wife Barbara Bush by his side. He told me a dirty joke." Lind's claim arrived in the wake of a number of accusations about men in entertainment and media after both women and men were inspired to come forward with their stories following the Harvey Weinstein scandal.

The second woman to make an allegation against Bush, actress Jordana Grolnick, said the former president made a joke as he allegedly grabbed her rear end at a Maine theater in 2016, using a nearly identical "David Cop-a-feel" line. She, too, shared a photo of herself with Bush.

While McGrath, Bush's spokesman, acknowledged that the president often "pats" women's rear ends, but also made reference to the former president using a wheelchair in an initial statement in response to Lind's allegation. He said that because Bush uses a wheelchair, his "arm falls on the lower waist of people with whom he takes pictures."

But other women, including Lewis and the most recent accuser, claim Bush groped them before he used a wheelchair (McGrath said Bush, who has vascular parkinsonism, a syndrome that mimics Parkinson's disease, has used a wheelchair for about five years.)

Liz Allen, city councilwoman in Eerie, Pennsylvania and former editor at the Erie Times-News, claims Bush touched her rear end in 2004. Amanda Staples, a former Republican candidate for state Senate in Maine, said Bush groped her in 2006.

In October, CNN also reported that another woman who wished to remain anonymous alleged Bush squeezed her rear end "a couple times" at a VIP event in Houston, though the report did not include the year or other specifics.

Amy Kuperinsky may be reached at akuperinsky@njadvancemedia.com. Follow her on Twitter @AmyKup or on Facebook.