I am looking for copies of papers from the 1963 ACM Natl. Conf., Denver,
Colo.  Now, obviously, I should go to the ACM digital library and get them.
Unfortunately, ACM does not have a copy of these proceedings!!  After
mailing with them about it, it seems that they nor have a paper or
electronic copy.

Who can help me locating the following three papers:

Schmidt, L., "Implementation of a Symbol Manipulator for Heuristic
Translation," 1963 ACM Natl. Conf., Denver, Colo.

Metcalfe, Howard, "A Parameterized Compiler Based on Mechanical
Linguistics," 1963 ACM Natl. Conf., Denver, Colo.

Schorre, Val, "A Syntax - Directed SMALGOL for the 1401," 1963 ACM
Natl. Conf., Denver, Colo.

yours sincerely,