Harrisburg (originally documented as Harrisburgh then shortened to Harrisburg in 1892) is located east of Houston, south of the Brays Bayou and Buffalo Bayou junction, west of Brady's Island.
Harrisburg (originally documented as Harrisburgh) is located east of Houston. This was south of the Brays Bayou and Buffalo Bayou junction. West of Brady's Island is Houston. This Harrisburgh is then shortened to Harrisburg in 1892.