Question: Who did Sam Massell lose to in the Atlanta mayoral election of 1973?

Context articles: Columbus, Ohio mayoral election, 1967
Burlington mayoral election, 2009
Atlanta mayoral election, 1985
Mary Norwood
Vincent Fort
Atlanta mayoral election, 1973
Leroy Johnson (Georgia politician)
Atlanta mayoral election, 1981
Atlanta mayoral election, 1977
Sam Massell

The Columbus mayoral election of 1967 was the 73rd mayoral election in Columbus, Ohio.
 During the primary nomination on May 2, 1967, the Columbus electorate nominated Republican Jerry Spears, Jr., a businessman from the Hilltop neighborhood, and incumbent Democratic mayor Jack Sensenbrenner to compete in the mayoral election.
 On Tuesday, November 7, 1967, mayor Jack Sensenbrenner defeated Jerry Spears, Jr.
The Burlington mayoral election of 2009 occurred on Tuesday, March 3, 2009.
 Burlington's mayoral race is a partisan election that occurs every three years, and there are no term limits.
 The incumbent mayor, Bob Kiss, had served since 2006.
 This marked the second mayoral election in Burlington using instant-runoff voting (IRV).
The 1977 Atlanta mayoral election took place on October 8, 1985.
 Incumbent Mayor Andrew Young easily won a second term against token opposition.
Mary Norwood is a member of the Atlanta City Council and a candidate in the 2017 Atlanta mayoral election.
 She was elected in 2013 for the citywide Post 2 seat and was sworn in on January 6, 2014.
 Prior to that, she was a 2009 mayoral candidate in Atlanta and a city councilwoman in Atlanta, Georgia, representing the Post 2 At Large seat.
 Norwood was originally elected to the Atlanta City Council in 2001.
Vincent D. Fort (born April 28, 1956) is a state Senator in the Georgia State Senate where he served as the Democratic Whip, elected since 1996.
 He represents part of Fulton County for the 39th district.
 His district includes part of Atlanta and East Point.
 He is a candidate in the Atlanta mayoral election, 2017.
The 1973 Atlanta mayoral election was held on November 6, 1973 in Atlanta, Georgia.
 Vice Mayor Maynard Jackson was elected as the city's first African-American mayor, defeating incumbent Mayor Sam Massell.
Leroy Reginald Johnson (born July 28, 1928), was an American politician who served in the Georgia State Senate from 1963 to 1975 after winning a seat in the 1962 Georgia General Assembly election.
 He was the first black state senator to be elected to the legislature in more than fifty years, since William Rogers in 1907, and the first to be elected to the Senate since 1874.
 He served District 38 in Fulton County and Atlanta, a predominantly black senate district created after the elimination of the county-unit system that same year.
 Before his term as senator, Johnson was an attorney where he played a role in Atlanta's civil rights movement of the 1960s.
 He was later a candidate in the 1973 Atlanta mayoral election but received few votes, despite being familiar to voters and having endorsement from "The Atlanta Constitution".
 The position went instead to Maynard Jackson who in turn became Atlanta's first African American mayor.
The 1981 Atlanta Mayoral Election took place on October 6, 1981, with the runoff held on October 27.
 Mayor Maynard Jackson was ineligible to run due to term limits.
 The runoff featured two prominent Atlanta politicians: former Congressman and UN Ambassador Andrew Young as well as State Representative Sidney Marcus.
 Young won in the October 27th runoff by double digits.
 It became the first time an African American mayor (Jackson) handed over the keys of a major city to another African American.
The 1977 Atlanta mayoral election took place on October 4, 1977.
 Incumbent Mayor Maynard Jackson easily won a second term without the need for a runoff.
Samuel A. Massell, Jr. (born August 26, 1927) is a businessman who served from 1970 to 1974 as the