I read that John's father was a drifter & heavy drinker who wasn't there for the family.....until he learned how wealthy his son was. When his father showed up at a Beatles concert after having nothing to do with him for most of his life, John asked him, "What do you want from me?"
Julian Lennon looks like his father and his Grandfather.. Sean doesn't look like him in this photo at all..
John was raised by his widowed maternal Aunt.. he adored his Aunt Mimi after both his parents abandoned him by the age of 5 .. and his mother died in a traffic accident when he was a teenager...