Colonel William G. Smollett introduces himself as such when he responds to the advertisement for an officer boarder, but is called 'Colonel Smollie' by Bridget while tending the victory garden, and again at his birthday party with his cake having 'Colonel Smollie' written on it. Although Bridget and the other family members know his correct surname and, at the beginning, address him by it, they later clearly address him as 'Smollie' as an affectionate family nickname.
Colonel Smollett (Monty Woolley) struggled to place a garden glove on his right hand. Later during the same scene in the victory garden, he wears a glove only on his left hand. At the start of the scene he was wearing two gloves. He took them both off, and then put on the right glove upside down before putting on the left glove. Next, when his hands (and soon all of him), were entirely off camera, he had enough time to remove the right glove, which he then carried in his gloved left hand.