There are more female settlers than male on the Minotaur, so it is not surprising that there are several recurring characters among them.
Mrs. Duplessis is a widow among the passengers and is chiefly noted for the fact that she is carrying her husband’s posthumous child. She gives birth to the baby on the long journey to the new colony.
Miss Kilmurray is a young women that Augie is carrying on a relationship with aboard ship. This causes him to come under suspicion (at least by Iolanthe) when Miss Kilmurray is found murdered.
Mrs. Kittredge is another widow making the trip. She is a seamstress and does several sewing jobs. She eventually marries Corporal Bratihn, and as Mrs. Bratihn becomes a major supporting character in books 2, 3, 4, and 5.