1969 blazer ambulance?

[72blaz]

so out of nowhere, This guy from the National Ambulance History association...or something to that effect sends me an email asking if he could get in touch with my dad.. I knew that my Dad had worked for some ambulance services in the late 60's..but that was about the extent of it.. Today he sent me a picture of my Dad back in the day...(farthest to the right) and low and behold...I see what appears to be a 1969 or close 1st gen blazer/ambulance....is this correct??? My dad never said anything about blazers at all since I have been restoring my 72 blazer...but that's pretty awesome if that is indeed a 1st gen blazer...