Whats the story concerning this 412 Sqn Spitfire Follow up

[Alex Smart]

Hello,

As a follow up to the story on VZ-G, BL964.
I looked at the 24th March 1942 412 Sqn Spitfires.
The following leaves some gaps, can they be filled please ?

19 Sqn - Mills - AD551 - evaded.
19 Sqn - Netocil - AD307 - POW/W - Czech.
411 Sqn - Sills - W3215 - KIA - Damaged, presumed ditched.
411 Sqn - Ash - AB281 - POW - S/d Comines by Fw190.
411 Sqn - Gridley - AB268 - KIA - S/d Comines by Fw190.
411 Sqn - Taylor - AB183 - W - RTD a/c scraped 27/10/1949.
412 Sqn - Morrison - BL471 - KIA - Claimed by Oblt. Múncheberg of JG26.
412 Sqn - Young - ????? - POW - Claimed by Oblt. Múncheberg of JG26.
66 Sqn - Cremin, DFC - AB462 - KIA - Collision with AB496, Cornwall.
66 Sqn - Norman,(RAAF) - AB496 - KIA - Collision with AB462, Cornwall.
121 Sqn - Skinner - BL963 - RTD - Out of fuel bellylanded on return at Upper farm, Sutton, Kent. DBR.
412 Sqn - Smith, (RCAF) - W3900 - KIA - 24-April-1942 not March.
64 Sqn - ????? - P8743 - ??? - Bellylanded Southend .

What was the serial number of Young's a/c and who were and what was the fate of the other three pilots please ?
Updates in "red".
Additions in "Green"

Thanks
Alex