Funny how a simple question like "I wonder who made Grandma's sterling silverware set" can result in 3 hours of research and a message board post. The second picture is my best effort to recreate the markings on the back, as best I can (even with magnification it was very hard to see)
http://www.oregoncrusaders.org/images/silver1.jpg
http://www.oregoncrusaders.org/images/silver2.jpg
(admin photo edit - images too large - link only - see Posting Requirements--Remember to use the Preview Button )
.
