Creskol,
I heard back from my friend on an ID as well: He concurs with what Sub said:
"What you have are Dimestore models - The upper row is USMA cadets and the lower are WWI doughboys. They do have some good value with the right dealer. Antique dealers however try to buy very low like five or six a figure and sell at 15 to 20 or more. Collectors and dealers in soldiers like Ron Ruddell or Joe Wallis make a better deal both ways."
"I concur with the identification but unless I saw them up close and personal I would not take a shot at the company. However, Grey Iron was a producer of Dimestore range soldiers during the 20's, 30's and early 40's but I believe the need for metal during WWII drove them out of business. "
Good finds man!