Zero. He did hit 49 twice.
Harmon Killebrew hit 573 career home runs.
Harmon Killebrew with 49 in 1964 and 1969.
Harmon Killebrew was known for his long distance power hitting. His longest measured home run was 520 at Minnesota's Metropolitan Stadium. He likely had longer ones that were not measured.
72
Harmon Killebrew 523 Feet
Home Run Derby - 1959 Harmon Killebrew vs- Mickey Mantle 1-4 was released on: USA: 30 January 1960
Home Run Derby - 1959 Rocky Colavito vs- Harmon Killebrew 1-5 was released on: USA: 6 February 1960
Harmon Killebrew Harmon Killebrew's 520-foot (160 m) home run, a blast to the upper deck in deep left-center field on June 3, 1967. This was the longest homer Killebrew ever hit, and the longest ever hit in Metropolitan Stadium.
Jones hit 20
In 1954, Harmon Killebrew played in 9 games for the Washington Senators, batting in all of them. He had 13 at bats, getting 4 hits, for a .308 batting average, with 3 runs batted in. He was walked 2 times. He struck out 3 times. He hit 1 doubles, 0 triples, and 0 home runs.
In 1955, Harmon Killebrew played in 38 games for the Washington Senators, batting in all of them. He had 80 at bats, getting 16 hits, for a .200 batting average, with 7 runs batted in. He was walked 9 times. He struck out 31 times. He hit 1 doubles, 0 triples, and 4 home runs.
In 1957, Harmon Killebrew played in 9 games for the Washington Senators, batting in all of them. He had 31 at bats, getting 9 hits, for a .290 batting average, with 5 runs batted in. He was walked 2 times. He struck out 8 times. He hit 2 doubles, 0 triples, and 2 home runs.