The first female CHP Motor Officer was Ramona Murray who became a motor officer in 1980. Murray (now Prieto) is now the Deputy Commissioner of the CHP, the #2 position on the department. She started on the CHP in the last cadet training class of 1977 and graduated the Academy in 1978.
First credited appearance for both Barbara Stock and Trisha Townsend in TV or film. For Townsend, this would be her only acting credit.
According to the application handed to Ponch, Melanie Ann Mitchell:
Applied for motorcycle duty on 1-8-1981 (this episode aired on 2-28-81)
Her date of birth (DOB) was 9-13-56 (age 24 as of 1-8-81, the actress Trisha Townsend has no DOB listed)
Her hair and eyes were both brown, she was 5'-8" tall and weighed 128 pounds (she was clearly a blonde)
Her driver license number was N664823
Her home address was 12768 Waterbury Av. (no city listed) and she lived alone (There is no 12768 Waterbury Av. in LA as of 2014)
Her work address was 10202 Culver Bv. 90203 (10202 Culver Blvd. would be in Culver City and there is no such exact address, 90203 is an invalid ZIP code as of 2014).
Her home phone number was 392-2366 (no area code)
Her work number was 396-8823 (no area code)
Her social security number was 110-44-0662 (this number shows as being issued in New York in 1968)