I think H is St Helens with two congregations using it now. Widnes Congregation is in another circuit and KingdomHall not very spacious
St Helens Kingdom Hall is on the North side of the M62 - on the above map, that's just above where it says 'Clock Face' (it does not have a pointer mark)
St Helens Kingdom Hall, 17-39 Chester Lane, St Helens WA9 4DA
Shaw Street Congregation
Sutton Congregation
The OP said they are keeping Widnes KH (H) which has just one congregation using it, and moving two other congregations into it - Speke and Belle Vale congregations and selling off their respective KHs (A and G)