Finney was of Scotch-Irish descent; he was named in memory of Louis Klopsch,[1] a German-American immigrant and founder of The Christian Herald magazine, who died in 1910.

He did not appear in the 1931 World Series, which Philadelphia lost to the St. Louis Cardinals, and spent 1932 with the Portland Beavers of the Pacific Coast League, batting .351 with 268 hits.

In 1934, he made the Athletics for good, but the Mackmen were beginning a 13-year streak of futility that would see them plummet to the bottom of the American League standings nine times, including 1935, 1936 and 1938.

With Boston, Finney benefited from the batting tips offered by Hall of Famer Hugh Duffy, a veteran Red Sox scout and hitting instructor.

With World War II raging, he spent the 1943 campaign working his Alabama farm before returning to the Majors for two full seasons (1944–45) and parts of 1946 and 1947.