Baseball Roster for 1966 Houston Astros
| # | Player Name | Pos | Age | B | T | Ht | Wt | Born | Place | High Level | mlbYears | Salary |
| 27 | Dave Adlesh | C | 22 | R | R | 6-0 | 187 | 7/15/1943 | Long Beach,California | MLB | 1963-1968 |
| 46 | Don Arlich | P | 23 | L | L | 6-2 | 185 | 2/15/1943 | Wayne,Michigan | MLB | 1965-1966 |
| 14 | Bob Aspromonte | 3B | 28 | R | R | 6-2 | 185 | 6/19/1938 | Brooklyn,New York | MLB | 1956-1971 |
| 7 | John Bateman | C | 25 | R | R | 6-3 | 220 | 7/21/1940 | Killeen,Texas | MLB | 1963-1972 |
| 9 | Ron Brand | C | 26 | R | R | 5-8 | 170 | 1/13/1940 | Los Angeles,California | MLB | 1963-1971 |
| 30 | Bob Bruce | P | 33 | R | R | 6-3 | 210 | 5/18/1933 | Detroit,Michigan | MLB | 1959-1967 |
| 42 | Frank Carpin | P | 27 | L | L | 5-10 | 172 | 9/14/1938 | Brooklyn,New York | MLB | 1965-1966 |
| 12 | Nate Colbert | 1B | 20 | R | R | 6-2 | 209 | 4/9/1946 | St. Louis,Missouri | MLB | 1966-1976 |
| 44 | Danny Coombs | P | 24 | R | L | 6-5 | 210 | 3/23/1942 | Lincoln,Maine | MLB | 1963-1971 |
| 35 | Mike Cuellar | P | 29 | L | L | 5-11 | 175 | 5/8/1937 | Santa Clara,Cuba | MLB | 1959-1977 |
| 29 | Brock Davis | OF | 22 | L | L | 5-10 | 168 | 10/19/1943 | Oakland,California | MLB | 1963-1972 |
| 22 | Ron Davis | OF | 24 | R | R | 6-0 | 180 | 10/21/1941 | Roanoke Rapids,North Carolina | MLB | 1962-1969 |
| 49 | Larry Dierker | P | 19 | R | R | 6-4 | 215 | 9/22/1946 | Hollywood,California | MLB | 1964-1977 |
| 13 | Turk Farrell | P | 32 | R | R | 6-4 | 220 | 4/8/1934 | Boston,Massachusetts | MLB | 1956-1969 |
| 11 | Gene Freese | 3B | 32 | R | R | 5-11 | 175 | 1/8/1934 | Wheeling,West Virginia | MLB | 1955-1966 |
| 46 | Joe Gaines | OF | 29 | R | R | 6-1 | 190 | 11/22/1936 | Bryan,Texas | MLB | 1960-1966 |
| 4 | Jim Gentile | 1B | 32 | L | L | 6-4 | 215 | 6/3/1934 | San Francisco,California | MLB | 1957-1966 |
| 39 | Dave Giusti | P | 26 | R | R | 5-11 | 195 | 11/27/1939 | Seneca Falls,New York | MLB | 1962-1977 |
| 11 | Julio Gotay | 2B | 27 | R | R | 6-0 | 180 | 6/9/1939 | Fajardo,Puerto Rico | MLB | 1960-1969 |
| 17 | Chuck Harrison | 1B | 25 | R | R | 5-10 | 190 | 4/25/1941 | Abilene,Texas | MLB | 1965-1971 |
| 8 | Bill Heath | C | 27 | L | R | 5-8 | 175 | 3/10/1939 | Yuba City,California | MLB | 1965-1969 |
| 16 | Sonny Jackson | OF-SS | 21 | L | R | 5-9 | 155 | 7/9/1944 | Washington,DC | MLB | 1963-1974 |
| 31 | Gary Kroll | P | 24 | R | R | 6-6 | 220 | 7/8/1941 | Culver City,California | MLB | 1964-1969 |
| 48 | Barry Latman | P | 30 | R | R | 6-3 | 210 | 5/21/1936 | Los Angeles,California | MLB | 1957-1967 |
| 48 | Don Lee | P | 32 | R | R | 6-4 | 210 | 2/26/1934 | Globe,Arizona | MLB | 1957-1966 |
| 15 | Bob Lillis | SS-2B | 36 | R | R | 5-11 | 160 | 6/2/1930 | Altadena,California | MLB | 1958-1967 |
| 25 | Felix Mantilla | 2B-SS | 31 | R | R | 6-0 | 160 | 7/29/1934 | Isabela,Puerto Rico | MLB | 1956-1966 |
| 20 | Lee Maye | OF | 31 | L | R | 6-2 | 190 | 12/11/1934 | Tuscaloosa,Alabama | MLB | 1959-1971 |
| 34 | Norm Miller | OF | 20 | L | R | 5-11 | 195 | 2/5/1946 | Los Angeles,California | MLB | 1965-1974 |
| 37 | Aurelio Monteagudo | P | 22 | R | R | 5-11 | 185 | 11/19/1943 | Caibarien,Cuba | MLB | 1963-1973 |
| 18 | Joe Morgan | 2B | 22 | L | R | 5-7 | 155 | 9/19/1943 | Bonham,Texas | MLB | 1963-1984 |
| 21 | Dave Nicholson | OF | 26 | R | R | 6-2 | 215 | 8/29/1939 | St. Louis,Missouri | MLB | 1960-1967 |
| 33 | Jim Owens | P | 32 | R | R | 5-11 | 190 | 1/16/1934 | Gifford,Pennsylvania | MLB | 1955-1967 |
| 28 | Aaron Pointer | OF | 24 | R | R | 6-2 | 185 | 4/19/1942 | Little Rock,Arkansas | MLB | 1963-1967 |
| 38 | Jim Ray | P | 21 | R | R | 6-1 | 195 | 12/1/1944 | Rock Hill,South Carolina | MLB | 1965-1974 |
| 36 | Claude Raymond | P | 29 | R | R | 5-10 | 175 | 5/7/1937 | St. Jean,Quebec | MLB | 1959-1971 |
| 38 | Robin Roberts | P | 39 | B | R | 6-0 | 190 | 9/30/1926 | Springfield,Illinois | MLB | 1948-1966 |
| 41 | Carroll Sembera | P | 24 | R | R | 6-0 | 155 | 7/26/1941 | Shiner,Texas | MLB | 1965-1970 |
| 22 | Greg Sims | OF | 20 | B | R | 6-0 | 190 | 6/28/1946 | San Francisco,California | MLB | 1966-1966 |
| 10 | Rusty Staub | OF-1B | 22 | L | R | 6-2 | 200 | 4/1/1944 | New Orleans,Louisiana | MLB | 1963-1985 |
| 40 | Ron Taylor | P | 28 | R | R | 6-1 | 195 | 12/13/1937 | Toronto,Ontario | MLB | 1962-1972 |
| 38 | Bob Watson | 1B-OF | 20 | R | R | 6-2 | 205 | 4/10/1946 | Los Angeles,California | MLB | 1966-1984 |
| 23 | Don Wilson | P | 21 | R | R | 6-3 | 205 | 2/12/1945 | Monroe,Louisiana | MLB | 1966-1974 |
| 24 | Jimmy Wynn | OF | 24 | R | R | 5-9 | 170 | 3/12/1942 | Hamilton,Ohio | MLB | 1963-1977 |
| 37 | Chris Zachary | P | 22 | L | R | 6-2 | 200 | 2/19/1944 | Knoxville,Tennessee | MLB | 1963-1973 |
Team Personnel