The connection that brought Marcus to Dell was freelancing artist Dick Giordano's asking him to ghost-pencil some full-art jobs assigned Giordano like Monkees 1 and Who's Minding the Mint?; at DC, on the Debbi titles, Giordano was the editor to begin with, so it was a more straightforward assignment.
Around this time Henry Boltinoff was writing teen humor stories longer than his ubiquitous DC cartoon pages, not only for the Ding-a-lings but for Debbi herself as well as Binky and Scooter.
The Ding-a-lings w: Henry Boltinoff p: Mo Marcus
in Debbi's Dates
|Oct-Nov/69||4||Swing 'n Slay||i: Dick Giordano|
|Dec-Jan/70||5||The Record 1st Prize||i: Vince Colletta|
|Feb-Mar/||6||Fun in the Sun||i: Colletta|
|Apr-May/||7||Country Cousins||i: Colletta|
in Date with Debbi
|Oct-Nov/72||18||The Phone-ey Audition||i: Colletta?|
Mo Marcus also pencilled the "Outasite" bottom-third-of the-page cartoons, two in Debbi's Dates 6, and one in Date with Debbi 8 (Mar-Apr/70).