This map represents the Asian American community in the Greater Houston area using data from the following published Houston area Asian American directories, 1940-1986 : 
Chinese American Directory of Greater Houston compiled by the Houston Lodge Chinese-American Citizens Alliance (CACA) 1959-60,
CACA Telephone Directory Convention Issue 1967,
CACA Telephone Directory and Business Calendar 1968-69,
Houston Chinese Directory 1976-77,
Houston Chinese Telephone Book 1980-81,
A personal collection of business and residential addresses provided by Dr. Ed Chen.

Use the time slider at the bottom of the map to watch the changes over time, and use the layers on the left to focus on residences or types of businesses.