Blythebourne Postal Station, 1933. The Postal Station (which no longer functions in that capacity) was named after the original community that became Borough Park. A developed established Blythebourne in 1887, a small cottage community. Within a decade or so another developer constructed residential and civic buildings and renamed this larger community Borough Park; he thought Blythebourne was too English sounding. The current Blythebourne Station is located in a late mid century (almost brutalist) building on 51st Street and 12th Avenue. This building at no. 5608 13th Avenue is Kollel Mateh Efraim, a Jewish religious organization.