Editor Murray Boltinoff had Cecil Beard give a quick bio in F&C 97, in which he identified Alpine Harper as his collaborator and noted that, having been writing comics for 20 years in '66, "by now, I think we've written for almost every comic character in the business."
I found a few of their later scripts at Gold Key by their distinctive "Ooo-hoo-hoo." From one story in it I could work out that they did the entire single issue of the time-travel sitcom tie-in It's About Time; I believe they did more stories of Scooby Doo than I've listed here, but it will take more study to be sure of the ones without "Ooo-hoo-hoo." The tiers are from the untitled first story in Fox and the Crow 90 (Feb-March/65); "A Better Mousetrap"; and "That's Snow Ghost."
Cecil Beard & Alpine Harper Scripts on
It's About Time
|Jan/67||1||The Day of the Widget|
|A Lesson in Courtship|
|A Better Mousetrap|
on Scooby Doo
|Dec/70||4||The Ghostly Sea Diver|
|Mar/71||5||That's Snow Ghost|
|Aug/73||20||The Fiery Hoo-Doo|