[PW] need help with origin of "-gry" puzzle

[Chris Cole]

Hi.  I'm the editor of the USENET rec.puzzles archive (
http://rec-puzzles.org) and the author of the book "Wordplay: A Curious
Dictionary of Language Oddities."  I've traced the origin of the (in)famous
"-gry" puzzle, and what I have been able to uncover is summarized here:

http://en.wikipedia.org/wiki/-gry#History

I need some help with the following:

1.  A reference prior to 1975 for a puzzle asking for three words that
CONTAIN "gry," as opposed to ENDING in "gry."

2.  Copies of the Bob Grant radio show on WMCA in New York City for
March-April 1975.

3.  The identity of a quiz show that was broadcast in New York in March
1975.

-Chris Cole