From Shotgun Shuffling
Herb Buckingham married to Rosemary and is the father of the seven Buckingham sisters. Though he does not have a cheek birthmark himself it was confirmed that the birthmarks were passed on from his side of the family (as evidenced by the man Herb references as Dad having π on his cheek), it skips every other generation or "something." Herb appears to be aware of the sisterhood council appointed names of his daughters but has a hard time keeping track of them. In fact he seems to have a hard time keeping track of the daughters in general (as seen here in his first appearance).
Herb attempts to make everyone believe the Black Friday shopping is a tradition for him and the girls (even if he's at work instead), though he reveals his real reason is to reduce self-imposed holiday stress on Rosemary. Nothing in the comic, so far, indicates if his wife buys his story or not.
It was revealed during the Black Friday shopping arc here that Herb is a member of the police force and is being addressed by an officer in uniform as "Chief." It isn't clear if the police department of Shotgun Shuffle is large enough for assistant/deputy/other designations of chief or if he's the head honcho. Running assumption so far is he's the head honcho. His speech bubbles so far are a dark and faded blue that wouldn't be out of place on a police uniform.
First appearance is here