'Starr Flagg, the heroine of UNDERCOVER GIRL, was a female secret agent who debuted in MANHUNT #1 (11/1947) and appeared in 11 issues of that title, plus 2 issues of Trail Colt and then 2 reprint issues of Manhunt (#13-4). She graduated to her own try-out title in 1952 as part of the A-1 series.' Info from GDC. Paul Parker was a real person and an excellent artist but there is not much info on him. He's not in Lambiak Encyclopedia. GDC only lists
5 [A-1 #62]
6 [A-1 #98]
7 [A-1 #118]
So apparently the three here are the only issues of Her own title.
Cheers.
Link to the book:
Undercover Girl 07 (A1 118)