Royal Oak Township boundaries through 1927

Rochester/Rochester Hills boundaries

Pontiac boundaries through 1927

corrected start date of town node

Southfield Township incorporations

added exact opening date of Dunham's Sports in Southgate

added the The Palace of Auburn Hills

added the Silverdome

added Marquette Building branch of First Federal Savings Bank

added Bloomfield Savings at 1133 Griswold

wikidata tags for Chapel of St. Theresa

added several buildings in and around downtown Detroit

added 30 West Grand River

I-75 through downtown Detroit

I-75 through downtown Detroit

some additional buildings in the Detroit Stadium District

partial business history at Ford and Goddard

cemeteries of Wyandotte

added some buildings east of Woodward in what is now the Detroit stadium district

James DeSana Drive and associated traffic light relocation