Question: Who was the acting mayor of Detroit when Hazen S. Pingree resigned from office in 1897?

Related documents: [0]  [DOC] Hazen Stuart Pingree (August 30, 1840 – June 18, 1901) was a four-term Republican mayor of Detroit (1889–1897) and the 24th Governor of the U.S. State of Michigan (1897–1901). A Yankee who migrated from New England, he was a Georgist social reformer who battled corporations and was an early leader of the Progressive Movement. [END] 
[1]  [DOC] William Richert (October 28, 1858 – June 16, 1912) served as acting mayor of Detroit, Michigan from March 22, 1897 to April 5, 1897, following the resignation of Hazen S. Pingree. [END]  
Answer: William Richert
William Richert