Dear friends!
According to
http://www.ww2.dk/air/attack/sg4.htm,
III./SG4 from 22.Sep. to Nov.1944 based on Tuckum (Kurland). It seems incorrect for November and maybe for the main part of October too, and group was outside Kurland.
Real bases of III./SG4 in Oct.-Nov.1944 are interesting.
Best regards,
Andrey