"Stub" Spencer was nearing the end of a lengthy, though undistinguished, minor league career when he made his lone Obak baseball card appearance in the 1911 set. (By the way, I'm long overdue apologizing for the quality of the card pictures I use in these postings. They are lo-res images that I scanned from my Obak collection many years ago. The cards are now long dispersed in other collections, so I'm stuck with what I had.)
We don't know when or where Spencer was born. The SABR Minor League Database records his first professional engagement as being with St. Paul in 1901. A player's first pro team is often, though by no means not always, close to home, so it's possible Spencer was a "western" boy. He did, in fact spend his entire pro career west of the Mississippi River.
Spencer started out as an outfielder. In 1902 he was with three of the six teams that made up the short-lived (1902-1903) Class D Iowa-South Dakota League: the Sioux City Cornhuskers, Sioux Falls Canaries and Le Mars Blackbirds. Though the league's stats appear to have been unrecorded, Spencer earned a berth on a Class A team, Seattle of the Pacific National League, for 1903. In 1904 he was with Butte, also in the PNAL.
In 1905, Bellingham of the Northwestern League moved Spencer went behind the plate, where he remained for the rest of his playing days. It looks like Spencer spent most of his career as a second-string catcher, obviously because of his light hitting. Between 1903-1913, he never hit above .248, and four times failed to break out of the .100s. He had only two career home runs.
Spencer rarely spent more than a single season with any team. In 1906 he was with Davenport. He played for both Vancouver and Aberdeen in 1907, and split 1908 with Aberdeen and Butte. In 1909 he was with Spokane. He played for Seattle and Tacoma in 1911 and ended his professional career in 1913 at Edmonton. In looks like Spencer was out of Organized Baseball in 1910 and 1912.
As with his birth specifics, the date and place of his death are unknown.
UPDATE: Veteran collector Dave Eskenazi, who specializes in early professional baseball in the Northwest, has provided some further details about Stub Spencer. Armed with his findings, it looks like we've also found Spencer's whereabouts during the 1910 season.
In 1910 the Edmonton Eskimos of the Western Canada League had a catcher named Spencer. Since biographical details (such as furst names) for that Class D minor league circuit are hard to come by, we can't be sure, but it looks like that was ol' Stub. He hit a decent .280 that season.
After his return to the NWL with Seattle and Tacoma in 1911, Spencer was back in the WCL in 1912, with the Red Deer (Alberta) Eskimos, where he hit .251. That's Spencer's photo, provided by Dave, at left.
We noted earlier that he had ended his pro career with Edmonton of the WCL in 1913, but Dave found both a photo and a record that show that Spencer caught for the Saskatoon Quakers of the WCL in 1914, when they won the league pennant, though Spencer contributed only a .146 batting average to the effort.