My grandfather has recently been putting old film reels onto DVD for the family and I came across a short clip to share. It is footage of my mother (about age 7) on the Flying Saucers with her big brother. It's only about a minute long, but it was so cool to see! Judging by her age, I'd say this was taken circa 1963.
disneyland 1963.wmv - YouTube
And here was an old photo of her family at Disneyland for a company picnic sometime around 1958. She's the little one near the top.