Ken Stringfellow, a one-time member of the Posies, the reconstituted Big Star and a sideman for R.E.M., has announced on his social media channels that he’s battling cancer and he’s asking for help.

Ken Stringfellow’s been around the block a few times, not to mention around the world. And the Bellingham native known for his stints in seminal Seattle power pop band The Posies, REM and Big Star has ...