So, I can't seem to find any references to the full names of Hermione's parents. This is my "shot in the dark."
Timothy Granger:
His little girl was no longer little. She was now a battle-scarred young woman. It had been two days since he and Beth had returned from Australia and their witch of a daughter returned their memories and identities to them. Hermione built in two weeks of vacation time before they returned to their patients. She tried to act so "natural" around him and Beth, but she was clearly suffering.
He met Beth in the hallway in front of Hermione's room. She gave him an assuring nod. He knew better than to knock as sounds like it made Hermione jump these days.
"Hermione," he called out. "Your mother and I would like to talk with you."
"About what?" she asked as she opened the door. "Are you having trouble remembering things? Did you leave anything in Australia?"
"Breathe, dear," Beth said.
"What's wrong?" she asked urgently.
"Can you please come and have a chat with us?" Tim asked patiently.
"Okay."
They took seats in the living room. Hermione was in a constant state of motion. It seemed she could not sit still.
"Is everything okay? Are you remembering things you don't want to remember? Is there anything you miss?"
"Hermione, we're worried about you," Tim said.
"About me? What's there to worry about? I'm fine."
"We hear you crying in your sleep dear," Beth said. "Something about a Bellatrix hurting you."
"I was never that good a potion-maker. I'll order a stronger sleep aid. I'm sorry I've kept you awake."
It broke Tim to see his daughter like this. "Hermione, what happened to you while we were gone?"
"Nothing for you to worry about. Hey, would you want to go back to France for a quick trip?"
"Don't change the subject," Tim said. "You're my daughter Hermione Jean. I think I should know what has made my daughter skittish like a rabbit and gives her horrible dreams."
"I don't want to worry you!" Hermione pleaded.
"I'm worried enough," he said.
"Hermione, were you raped?" Beth asked.
Hermione looked horrified. "What? Oh god no. Mum. No!"
"Would you tell us if you were?" Tim asked.
Hermione wouldn't look at them. "I wasn't raped."
"How can we help?" Tim asked.
"By being yourselves," she said with a smile. "My marvelous muggle parents."
"Why exactly are these magical people you associate with, so obsessed with who is born with magical talent and who isn't?" he asked.
"It sounds a lot like Hitler's master race eugenics," Beth said.
"It's hard to explain," Hermione said.
"Why do you even want to associate with people who think less of you because your parents aren't magical?" Beth asked.
"It's ingrained prejudice. Now that Voldemort is dead, I can build bridges and root out the pure-blood nonsense. I will make things better for muggles."
"You don't have to do it on your own I hope," Tim said.
"I won't. I have friends."
"Speaking of friends," Beth said. "When are you going to introduce us to Harry Potter? I'd also like another introduction to the Weasley clan."
"They're still mourning the loss of one of the twin brothers," she said. "Harry is still processing a lot of emotions."
"The minute we're back in our practice you're leaving, aren't you?" Tim said feeling a little anger building up. "You're waiting us out. In about ten days, you're going to do that thing with a popping sound and leave us."
"Tim," Beth cautioned.
"Hermione, I'm not sure you even want us in your life anymore. You've spent so few holidays with us in the last few years."
"Dad, I do!" Hermione said. "It is just. There are a lot of other things I need to do. Harry has needed me. Ron has needed me. The wizarding world needs me."
"You're still a teen," Tim said. "The world should not have to depend on you."
"We need you," Beth said.
"I know. I know. But I can do both. I'll pop in on the weekends. We can have Sunday brunch."
"Why can't you sit still?" Beth asked. "Why don't you even want to sit and watch the Telly with us?"
"Muggle affairs bore me," Hermione said. "I just can't bring myself to care about silly things such as which cinema stars are dating anymore."
"Hermione, we love you," Tim said. "We know we don't know a whole lot about your world. But we want to parent you. We want to be there for you. Please let us."
Hermione face shifted. She was trying to be brave. Tim could tell she was looking for the right platitude to convince them she was fine. But for once words were failing her.
Tim and Beth rushed from their seats to hug their sobbing daughter.