A very few places are called [H]OUDRY, including towns and hamlets (see Fig. 1). Please note this work is not today ended and other places could be furtherly identified.
Each following entry of the list corresponds to a French department. The number between parentheses is its coded representation.
In Seine-et-Marne (77): 1 old place in the vincinity of Provins.
In Vosges (88): 4 places including 1 farm.
In Sarthe (72): 1 hamlet.
In Saône-et-Loire (71): 1 town and another place.
In Indre-et-Loire (37) : 4 hamlets.
In Côte-d'Or (21): 1 hydraulic tank.
In conclusion, HOUDRY is not only a place name limited to the Brie area. But it is particularly the name of a very old place in Brie (see "Possible origin").