Thanks for that info, John, but it may not be quite correct. Sears did drop handguns from its catalog, under pressure about "mail order guns", but I recall that they continued to be sold in the retail stores until after the Kennedy assassination.
The Model 51 Unique pistol was not Sears marked, either as a J.C. Higgins or Ted Williams; it bore only the Unique and Manufacture d'Armes de Pyrenees markings.
The pressure by Tom Dodd to ban "mail order" guns pre-dated the assassination of JFK by a couple of years. The killing gave Dodd's bill new impetus and he added military surplus arms at the instigation of Winchester (Olin), as the company believed that sales of their over-priced rifles were being hurt by the availability of milsurp rifles. The "Saturday Night Special" part of GCA '68 was added later, after the killing of Robert Kennedy.
GCA 68 actually was passed as two bills, one passed on June 5, 1968, the other two weeks later, after the RFK assassination. The latter event obviously influenced the passage, but the real impetus was the rioting following the assassination of Martin Luther King in April. The thought of black people with guns scared the (then) lily-white Congress out of their tiny minds, and they rushed the legislation through. One of the major points made by supporters was that it forced the gun purchaser and the dealer to "come face to face." A neat bit of hypocrisy, since no one could tell a criminal by his face, but one could certainly tell a black man by his face. The implication was that no dealer (all were white at the time, and assumed to remain that way) would sell a gun to a black person.
Jim