Maury proposed to offer his services not only as a torpedo expert but also on a broader scale that would be of far reaching benefit for his own loved people and to the new Empire-- the emigration of Confederates to Mexico. At the time, it appeared to him that he might never be allowed to return home because of the several categories that applied to exclude him from amnesty, including his leadership in the development of torpedoes and overseas intrigue.
Throughout the summer he received communications from home advising against his return.
For example, on June 19 his daughter Elizabeth Herndon Maury wrote: "Don't trust to any parole or any promise. General Curtis of the U.S. Army, who is staying here, said to me this morning that you ought not to come under any circumstances,
"General Lee said to me the other day, 'Mrs. Maury, tell you father from me not to think of coming home."
Laying Low in Mexico. --Old B-R'er