Leroy S. Johnson (1888–1986), leader of the Fundamentalist Church of Jesus Christ of Latter Day Saints
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LeRoy Johnson Jr. (1935–2011), editor and research archeologist at the Texas Historical Commission
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J. Leroy Johnson (1888–1961), United States congressman from California
Johnson started his political career as an Alderman for the city of Camrose, Alberta.
LeRoy Johnson (born 1941), Canadian teacher, politician and former MLA for Wetaskiwin-Camrose, Alberta
Lyndon B. Johnson | Samuel Johnson | Johnson & Johnson | Dwayne Johnson | Boris Johnson | Johnson | Andrew Johnson | Lyndon B. Johnson Space Center | Magic Johnson | Robert Johnson | James Weldon Johnson | Jack Johnson | Kevin Johnson | Jimmie Johnson | Don Johnson | Randy Johnson | Betsey Johnson | Lionel Johnson | Holly Johnson | Van Johnson | Molly Johnson | Amy Johnson | Glen Johnson | Gary Johnson | Dwayne "The Rock" Johnson | David Johnson | Robert Johnson (musician) | Rida Johnson Young | Philip Johnson | Nunnally Johnson |
During World War II the area included important war effort facilities such as Higgins Industries shipyards, Camp Leroy Johnson, and a Naval Air Base, NAS New Orleans.