It 's a 154 - acre ( 62 ha ) residential community incorporated in 1891 , along the B & O Railroad .
The Garrett Park Historic District is a national historic district located at Garrett Park , Montgomery County , Maryland .
Garrett Park Historic District 's a 154 - acre ( 62 ha ) residential community incorporated in 1891 , along the B & O Railroad .
The Garrett Park Historic District is a national historic district located at Garrett Park , Montgomery County , Maryland .