Lead or pewter soldiers were popular in the late 1800's through around the 1920's, when they were then replaced by cast iron dime store varieties. What you have found looks to be an early 1900's sailor like the one selling here on E-Bay:
Nice finds and congrats on the IH. I'd agree with others on the approx. date on the soldier. My initial guess was late 1800s/early 1900s and in the same period as your IH drop.