Hahnemann Memorial
"Christian Friedrich Samuel Hahnemann was a German physician, known for creating the system of ..
H.C. Ewald’s Building
"H. C. Ewald 1888 Building, 714 7th St NW between G & H Streets. In 1891, Herman C. Ewald's..
H. H. Wells Residence
"In 1887, towards the end of his career, Adolf Cluss and his partner Paul Schulze designed this..
Healy’s Pharmacy
"Once home to Healy's Pharmacy, this corner building at Massachusetts Avenue and 3rd St NW was ..
Hecht Company Department Store & Warehouse
"The Hecht Company's main department store downtown was located here at the southeast corner of..
Heurich House Museum
"The Heurich House Museum preserves the legacy of historic brewer Christian Heurich and enriche..
The Heyday of Four-and-a-Half Street Marker
Marker reads in part, "Around 1900 this street was the dividing line between a mostly African A..
Hollerith House
"Herman Hollerith was born on February 29, 1860, in Buffalo, New York, and died on November 17,..
Hollerith’s Tabulating Machine Company
"In 1890, the Census Bureau attempted its first “count by electricity,” using Washington in..
Jacques Jouvenal’s Marble Works
"Jacques Jouvenal emigrated to the United States in June 1853 and moved from New York to Washin..