Posted By:
Dan BrettaPaul, without your book I don't think I would have ever even known that a pin for the Lincoln team existed. As soon as I saw the pins in your book with "Antelope Park" I looked into opening days for the Lincoln club and they coincided.
http://marian.creighton.edu/~besser/baseball/antelope.html
The "Boost Lincoln" club I believe coincides with the opening of the second half of the season when the Western League was set up with two half seasons where the champion of the first half plays the champion of the second half for the league championship.
The May 10th pin is from 1910 and the April 21 pin is from 1911.