151 (Mixed) Heavy Anti-Aircraft Regiment RA(TA) was formed in Ellesmere Park, Eccles in February 1942. It became a non-mixed Regiment in February 1946. The Regiment was considered a War Formed Regiment in January 1947 and re-designated as 109 Heavy Anti-Aircraft Regiment RA in April that year.
| Feb 42 | Formed | Eccles, Greater Manchester, UK |
| May 42 | 44 Anti-Aircraft Brigade, 4 Anti-Aircraft Division | North West England |
| Jul 42 | 35 Anti-Aircraft Brigade, 5 Anti-Aircraft Division | Portsmouth, Hampshire, UK |
| ?? | 63 Anti-Aircraft Brigade, 5 Anti-Aircraft Group | East Anglia |
| Jul 44 | 41 Anti-Aircraft Brigade, 5 Anti-Aircraft Division | East Anglia, UK |
| Aug 44 | 30 Anti-Aircraft Brigade, 5 Anti-Aircraft Group | Eastern England |
Batteries
| Mar 42 | 510 (Mixed), 511 (Mixed), 514 (Mixed), 516 (Mixed) |
| Feb 45 | 511 (Mixed), 514 (Mixed), 516 (Mixed) |
Gun Sites Occupied
Site-*/*= old site/new site
510 Battery
| Dates | Gun Site | Gun Defended Area |
| Sep 42 | J/H9 Stone Creek | Humber |
514 Battery
| Dates | Gun Site | Gun Defended Area |
| Jul 42 | H31 | Humber |
