Frankly, I'm getting tired of doing the research on all these Red Sox players, so I'll just offer a pointer on Leroy and Mahoney. Their images may be found in Red Sox uniforms in the 1911 Spalding Guide, both on the same page, known on line as Image 107 (page 85).
To get to the 1911 Spalding Guide, visit the following URL and look around for that particular guide:
https://archive.org/search.php?query...seball%20guide