Eastman was born in Mansfield in DeSoto Parish, and the site of the Battle of Mansfield in 1864 during the [[American Civil War]]. Eastman earned his living as a tinsmith (or "tinner").<ref name=lahist>{{cite web|url=https://www.lahistory.org/resources/dictionary-louisiana-biography/dictionary-louisiana-biography-e/|title=Eastman, John H.|publisher=Louisiana Historical Association: ''A Dictionary of Louisiana Biography''|accessdate=June 20, 2020}}</ref><ref>''A Dictionary of Louisiana Biography'' used the book ''History of Shreveport and Shreveport Builders'' (1937) by Lilla McLure and J. Ed Howe for its sketch of Mayor Eastman.</ref> In 1898, he established the Vordenbauman-Eastman Hardware Company.<ref name=lahist/> | Eastman was born in Mansfield in DeSoto Parish, and the site of the Battle of Mansfield in 1864 during the [[American Civil War]]. Eastman earned his living as a tinsmith (or "tinner").<ref name=lahist>{{cite web|url=https://www.lahistory.org/resources/dictionary-louisiana-biography/dictionary-louisiana-biography-e/|title=Eastman, John H.|publisher=Louisiana Historical Association: ''A Dictionary of Louisiana Biography''|accessdate=June 20, 2020}}</ref><ref>''A Dictionary of Louisiana Biography'' used the book ''History of Shreveport and Shreveport Builders'' (1937) by Lilla McLure and J. Ed Howe for its sketch of Mayor Eastman.</ref> In 1898, he established the Vordenbauman-Eastman Hardware Company.<ref name=lahist/> |