John Dickinson

John Dickinson is the father of Betty Nelson.

History
When their daughter, Britney, called them from rehab, John and his wife Carol came to Seattle to find her. When they learned she'd run away from rehab, they went over to the hospital, where they found Amelia. They were confused as to how Britney had met her in the first place and she explained that it was through Leo. They hadn't known she had given birth to a baby and asked to see him immediately. After meeting Leo, they decided they wanted to take him back to the hotel with them, but Owen said he was Leo's legal guardian and wouldn't allow it. ("I Walk the Line")

Romantic
He is married to Carol Dickinson.

Familial
John's daughter, Britney (aka Betty), ran away from home after becoming addicted to drugs following a soccer injury. She had a baby by her drug dealer and he was placed in foster care after he was born. After running away from rehab and nearly dying when drugs she'd taken damaged her heart, they went to take her and Leo back home with them, but Britney decided she wanted Leo to stay with Owen and Amelia because she wanted to be able to be a kid.