Otto Ruckert 4./Jasta 186,JG 106 e.t.c

[Johannes]

Hi

Can anybody help me prove that Otto Ruckert who made a claim with 4./Jaster 186 as an Unteroffizier on 24th May 1940, and moved onto JG 106 actually spent time with 1./SKG 210, where he is thought to have made a claim as a Feldwebel on 22nd June 1941.
Date of Birth/Death would be helpful. He just seems to dis-appear!

Grateful for any assistance

Regards

Johannes