Jerrie is a variant spelling of Gerald, which is derived from the Germanic elements 'ger' meaning 'spear' and 'wald' meaning 'rule'. It's a unisex name but is more commonly used for females. The name Jerrie was popularized by American aviator Jacqueline Cochran, who went by the nickname Jerrie.
"This name appears to have been moderately popular throughout the mid-20th century, with peaks in the late 1940s and early 1950s."