This is a really nice article from the June 1995 issue of Monkee Business Fanzine that discusses Peter Tork singing the "Star Spangled Banner" in Portland, Maine for the (Double-A baseball team) Portland Sea Dogs on their opening night.
A little note on Chris: I connected with him online in 2000 or so. In 2001 I began a small project, writing brief summaries for each Monkees tour and embellishing the information with set lists and reviews. Brad Waddell at Monkees.net was kind enough to publish my work on his website that year, and Chris was a big help in collecting variations of set lists from different tours, reviewing the summaries I had written, etc. It ultimately took a decade for this website to be created, but the genesis of it all started during that time with assistance from Chris.