What were the dates of the articles?
I have shown this before, but the non-baseball were apparently issued around the 1888 Presidential Election. I have the Allen G. Thurman (losing vice-presidential candidate) and I have seen the Grover Cleveland (the sitting President, but loser of the 1888 election.) I have never seen or heard of a Benjamin Harrison or Levi Morton but I assume they were at least initially produced, although since both examples that have surfaced are Democrats, maybe G&B were too partisan to include the Republicans in the series! Also, the set could have included other non-baseball players, but the aforementioned subjects are the only ones I have ever seen.
Scan 4X actual size (they are the same size as the ballplayers)
-Rhett