(Gladys died in 1958, when Elvis was 23.) In addition to several sweet photos of just Elvis and his dad, the montage also featured shots of Vernon with Elvis and Priscilla's daughter, Lisa Marie ...

Priscilla moved into Graceland to live with Elvis in May 1963, with the couple tying the knot a few years later in May 1967.

The special "Private Presley" tours will focus on Elvis Presley's military career and how Graceland was part of that journey.

"I grew up in a house where a photo of Elvis is on my parents' fridge beside the ultrasound souvenirs of their grandkids," Erin wrote in the caption, alongside a picture of the refrigerator ...

Elvis publicized the moment by sending photos of his inoculation out across the nation. Teens all across Canada and the United States followed in Elvis's footsteps and got the polio shot.