The following brethren were invested with Royal Ark Mariner Grand Rank by the Pro Grand Master at the Royal Ark Mariner Grand Assembly Meeting in London on Tuesday 10th December 2019.
| Name | Lodge | Number |
|---|---|---|
| W.Bro GarryJ Errock | Mossley | 1381 |
| W.Bro Michael L Porter | Ardwick | 1222 |
| W.Bro David Rainford | F.W.Broadbent | 1132 |