Hackett signed to-day to play with the Bostons next season at a salary of $1,600. President Lucas, of the St. Louis Union Association Club, offered him $2,500 and a blank contract was sent [to Boston] for him to sign. Mr. Lucas' agent did everything in his power to urge Hackett to accept his offer, but Hackett said he preferred to play with the Bostons.
-St. Louis Globe-Democrat, December 8, 1883
There had been rumors floating around for at least a week that the Maroons were going to sign a League catcher and Lucas, himself, had stated that he was close to signing someone. Obviously, the guy he was after was Mortimer Hackett.