| - | Michael Alvarez | OF | A | | | Both | Left | | - | | 1986 | 7 | 180 | STL |
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| - | Stan Barrs | IF | A | 5-10 | 160 | Right | Right | 2/14/1966 | 22 | Madison,Florida | 1986 | 1 | 24 | STL |
| - | Mark Behny | P | A | 6-2 | 195 | Right | Right | 8/3/1964 | 23 | Peru,Indiana | 1986 | 13 | 338 | STL |
| - | Scott Broadfoot | P | A+ | 6-1 | 185 | Right | Right | 6/18/1965 | 23 | Wichita,Kansas | 1985 | 5 | 108 | TEX |
| - | Greg Carmona | SS | AAA | 6-0 | 150 | Both | Right | 5/9/1968 | 20 | Bani,Dominican Republic | 1987 | UDFA | | STL |
| - | Ed Carter | OF | AA | 5-9 | 160 | Left | Left | 9/16/1968 | 19 | Jacksonville,Florida | 1986 | 27 | 683 | STL |
| - | Bob Colescott | C | A | | | Right | Right | 12/8/1965 | 22 | Deerfield Beach,Florida | 1983 | 19 | 474 | NYM |
| - | Gregory Doss | | A | | | | | | - | | 1987 | UDFA | | ATL |
| - | James Ferguson | | A+ | | | | | | - | | 1988 | UDFA | | STL |
| - | Jean-Paul Gentleman | SS | A | 5-10 | 170 | Right | Right | 10/27/1966 | 21 | Germantown,Tennessee | 1987 | 15 | 383 | STL |
| - | Antron Grier | OF | A+ | 6-0 | 165 | Both | Right | 11/14/1965 | 22 | Phenix City,Alabama | 1987 | 6 | 150 | STL |
| - | Brad Harvick | P | A | 6-4 | 205 | Left | Left | 1964 | 24 | Altus,Oklahoma | 1987 | 14 | 357 | STL |
| - | Hal Hempen | | A | | | | | | - | | 1987 | UDFA | | STL |
| - | William Hershman | P | A+ | 6-2 | 185 | | | 10/7/1964 | 23 | Pittsburgh,Pennsylvania | 1986 | 15 | 390 | STL |
| - | Mike Hinkle | P | AAA | 5-11 | 170 | Right | Right | 3/17/1965 | 23 | Kansas City,Kansas | 1987 | 24 | 617 | STL |
| - | Richard Hoffman | P | AA | 6-4 | 215 | Right | Right | 3/7/1966 | 22 | Rockville Centre,New York | 1988 | 31 | 808 | STL |
| - | Clint Horsley | P | A | | | | | | - | | 1987 | 29 | 747 | STL |
| - | Kris Huffman | SS | A | 6-0 | 180 | Both | Right | | - | Salisbury,North Carolina | 1987 | 20 | 513 | STL |
| - | Ryan Johnston | | A | | | | | | - | | 1987 | 40 | 1011 | STL |
| - | John Kroeger | C | A | | | | | | - | | 1988 | 35 | 912 | STL |
| - | Scott Lawrence | SS | A+ | 6-2 | 195 | Right | Right | 8/1/1963 | 24 | Rupert,Idaho | 1986 | 19 | 494 | STL |
| - | John Lepley | P | AA | 6-2 | 185 | Right | Left | 6/11/1965 | 23 | Omaha,Nebraska | 1988 | 24 | 626 | STL |
| - | Rob Livchak | P | A+ | 6-2 | 215 | Left | Left | 7/13/1962 | 25 | Lorain,Ohio | 1983 | 35 | 797 | NYY |
| - | Eddie Looper | 3B | A | 5-11 | 190 | Right | Right | 12/13/1964 | 23 | Brooksville,Florida | 1986 | 21 | 546 | STL |
| - | Lonnie Maclin | OF | MLB | 5-11 | 185 | Left | Left | 2/17/1967 | 21 | Clayton,Missouri | 1986 | 10 | 250 | CIN |
| - | Roberto Marte | P | A | 6-2 | 190 | Right | Right | 4/7/1965 | 23 | Mao Valverde,Dominican Republic | 1984 | UDFA | | STL |
| - | Timothy Meamber | P | A+ | 6-2 | 200 | Right | Right | 7/11/1965 | 22 | | 1987 | UDFA | | STL |
| - | Darren Nelson | OF-1B | A+ | 6-2 | 190 | Right | Right | 11/25/1965 | 22 | Fullerton,California | 1987 | 11 | 279 | STL |
| - | Reed Olmstead | 1B-P | AA | 6-4 | 195 | Left | Left | 10/19/1968 | 19 | Pasadena,California | 1986 | 2 | 51 | STL |
| - | Tim Pettengill | C | A | | | | | | - | | 1988 | 22 | 574 | STL |
| - | Lee Plemel | P | AA | 6-1 | 180 | Right | Right | 9/19/1966 | 21 | Laguna Hills,California | 1988 | 5 | 132 | STL |
| - | Francisco Rosario | | A | | | | | | - | | 1986 | UDFA | | STL |
| - | Mike Ross | SS | AAA | 6-0 | 170 | Right | Right | 10/14/1965 | 22 | Fresno,California | 1988 | 4 | 106 | STL |
| - | Tony Russo | P | A+ | 6-1 | 187 | Right | Right | 12/22/1964 | 23 | St. Louis,Missouri | 1987 | 34 | 875 | STL |
| - | John Sellick | 1B-3B | AA | 6-3 | 225 | Right | Right | 10/9/1965 | 22 | Queens,New York | 1987 | 28 | 721 | STL |
| - | Tim Sherrill | P | MLB | 5-11 | 170 | Left | Left | 9/10/1965 | 22 | Harrison,Arkansas | 1987 | 18 | 461 | STL |
| - | Ken Smith | P | AA | | | | | | - | | 1987 | 30 | 773 | STL |
| - | Andrew Taylor | P | A | 6-1 | 185 | Right | Right | 1964 | 24 | West Islip,New York | 1986 | 20 | 518 | NYM |
| - | Orlando Thomas | OF | AAA | 6-1 | 210 | Right | Right | 11/23/1966 | 21 | Nashville,Tennessee | 1986 | 11 | 275 | STL |