The "P" and "H" in the Grange's national emblem represent "patrons" and "husbandry", as the official title is the National Grange of the Order of Patrons of Husbandry.
There are more than 2100 active Granges in the USA. Pennsylvania currently has 246 of that number assembling in buildings such as this one.
The National Grange convention will meet November, 15-19, 2016, in Washington, D. C. to celebrate its 150th anniversary serving rural communities across the nation. PA's Session will be held October 19-22, 2016.