Holy Trinity Mission Seminary is a Christian church in Adelphi, Prince George's County, Maryland — listed by Foursquare OS Places; last seen September 2026.
Who meets here
No organisation record is linked to this building yet — the building is known from the map sources below.
Also listed at this address: Trinity Missions.
How we know
- Foursquare OS Places · seen September 2026
One source lists this place; we have not yet seen it elsewhere. About our sources