| Monday, December 15th , 1958 | Released CL Scotty Gray. | Signed free agent 3B Tommy Munn to a minor league contract. | Sunday, November 16th , 1958 | Released RP Neil Loso. | Signed free agent RP Cliff McGuire to a minor league contract. | Saturday, October 25th , 1958 | Signed free agent SP Charley Stewart to a minor league contract. | Signed free agent RP Jessie James to a minor league contract. | Thursday, October 2nd , 1958 | Released 1B Cy Holden. | Wednesday, September 24th , 1958 | Signed free agent RP Mack Cook to a minor league contract. | Signed free agent RP Ken Rasmussen to a minor league contract. | Monday, September 22nd , 1958 | Signed free agent SP Fred Green to a minor league contract. | Friday, September 5th , 1958 | Placed 2B Tom LeClerc on the Upper Mississippi Valley Association 7-day injured list, retroactive to 09/04/1958. | Monday, August 25th , 1958 | Signed free agent RP Dutch Lane to a minor league contract. | Thursday, August 21st , 1958 | Signed free agent SP Moxie Martin to a minor league contract. | Wednesday, August 20th , 1958 | Placed CF Joe Bowman on the C-O-W League 7-day injured list, retroactive to 08/19/1958. | Released RP Hal West. | Friday, August 8th , 1958 | Signed free agent SP Jackie Reynolds to a minor league contract. | Thursday, August 7th , 1958 | Placed SP Jack Kilmer on the Upper Mississippi Valley Association 7-day injured list, retroactive to 08/06/1958. | Assigned RP Johnny Reinhardt to Class C Waterloo. | Tuesday, August 5th , 1958 | Released RF Mark Baker. | Signed free agent RP Johnny Gerstel to a minor league contract. | Signed free agent RP Paul Theis to a minor league contract. | Monday, August 4th , 1958 | Signed free agent RP Nelson Swain to a minor league contract. | Signed free agent RP Jack Husmann to a minor league contract. | Tuesday, July 15th , 1958 | Released RP Walt Sell. | Monday, July 14th , 1958 | Signed free agent RP Charlie Smith to a minor league contract. | Signed free agent RP Cliff Dinger to a minor league contract. | Released RP John Mack. | Saturday, July 12th , 1958 | Signed free agent RP Jessie James to a minor league contract. | Released RP Dave Viola. | Monday, June 30th , 1958 | Signed free agent RP Sam Powell to a minor league contract. | Signed free agent RP Joe Ashlock to a minor league contract. | Released RP Herb Drennan. | Thursday, June 19th , 1958 | Drafted RF Jimmy Brown in the 1958 first-year player draft (Round 1, Pick 11, 11th overall pick). | Drafted C Eddie Thomas in the 1958 first-year player draft (Round 2, Pick 11, 27th overall pick). | Drafted SP Roy Brandt in the 1958 first-year player draft (Round 3, Pick 11, 43rd overall pick). | Drafted 3B Charlie Wagner in the 1958 first-year player draft (Round 4, Pick 11, 59th overall pick). | Drafted SS Harry Bailey in the 1958 first-year player draft (Round 5, Pick 11, 75th overall pick). | Drafted SP Walter Crowson in the 1958 first-year player draft (Round 6, Pick 11, 91st overall pick). | Drafted 1B Frank Webster in the 1958 first-year player draft (Round 7, Pick 11, 107th overall pick). | Drafted 3B Luke Arnold in the 1958 first-year player draft (Round 8, Pick 11, 123rd overall pick). | Drafted 2B Tom LeClerc in the 1958 first-year player draft (Round 9, Pick 11, 139th overall pick). | Drafted SP Eddie Watson in the 1958 first-year player draft (Round 10, Pick 11, 155th overall pick). | Drafted 1B Jim Staples in the 1958 first-year player draft (Round 11, Pick 11, 171st overall pick). | Drafted LF Steve Olesen in the 1958 first-year player draft (Round 12, Pick 11, 187th overall pick). | Drafted RP Americo Abad in the 1958 first-year player draft (Round 13, Pick 11, 203rd overall pick). | Drafted SS Jim Taylor in the 1958 first-year player draft (Round 14, Pick 11, 219th overall pick). | Drafted RP Stan Gilman in the 1958 first-year player draft (Round 15, Pick 11, 235th overall pick). | Drafted 1B Ted Smith in the 1958 first-year player draft (Round 16, Pick 11, 251st overall pick). | Drafted RP George Cardinal in the 1958 first-year player draft (Round 17, Pick 11, 267th overall pick). | Drafted C Ed Hammer in the 1958 first-year player draft (Round 18, Pick 11, 283rd overall pick). | Drafted CF Sam Gray in the 1958 first-year player draft (Round 19, Pick 11, 299th overall pick). | Drafted RP Luther Darby in the 1958 first-year player draft (Round 20, Pick 11, 315th overall pick). | Promoted 1B Dick Hodgson from Class A Cedar Rapids to Double A Oklahoma City. | Promoted SP Mack Roberts from Class B Tacoma to Class A Cedar Rapids. | Demoted RP Hy Coffey from Double A Oklahoma City to Class A Cedar Rapids. | Promoted SS Guy Johnson from Class B Tacoma to Class A Cedar Rapids. | Promoted LF Bucky Reynolds from Class B Tacoma to Class A Cedar Rapids. | Promoted RF John Hill from Class B Tacoma to Class A Cedar Rapids. | Promoted 1B Wally Fontaine from Class B Tacoma to Class A Cedar Rapids. | Demoted RP Pug Williams from Class A Cedar Rapids to Class B Tacoma. | Demoted RP Eddie Carlson from Class A Cedar Rapids to Class B Tacoma. | Demoted CF Howie Bryant from Class A Cedar Rapids to Class B Tacoma. | Demoted CF Blackie Morrison from Class A Cedar Rapids to Class B Tacoma. | Promoted 3B Clyde Fisher from Class C Waterloo to Class B Tacoma. | Promoted 2B Ray Puleo from Class C Waterloo to Class B Tacoma. | Demoted RP Carl Davis from Class B Tacoma to Class C Waterloo. | Released RP George Cardinal. | Released RP Stan Gilman. | Released RP Walt Armstrong. | Released RP Patsy Marsh. | Released RP Gene Mead. | Released SP Otis Guthrie. | Released C Ray Williams. | Released RP Luther Darby. | Released C Ed Hammer. | Released SP John Mack. | Released CF Leo Parsons. | Thursday, June 12th , 1958 | Placed SS Bennie Place on the Lone Star Association 10-day injured list, retroactive to 06/11/1958. | Assigned RP Hy Coffey to Double A Oklahoma City. | Wednesday, June 4th , 1958 | Released SP Jim Lewis. | Sunday, June 1st , 1958 | Signed free agent RP Patsy Marsh to a minor league contract. | Signed free agent RP Harvey Webb to a minor league contract. | Saturday, May 24th , 1958 | Signed free agent CF Charlie Patterson to a minor league contract. | Thursday, April 24th , 1958 | Signed free agent CL Eddie Carlson to a minor league contract. | Tuesday, April 8th , 1958 | Signed free agent RP Walt Sell to a minor league contract. | Monday, April 7th , 1958 | Signed free agent SP Joe Sigler to a minor league contract. | Tuesday, February 18th , 1958 | Signed free agent SP Jim Lewis to a minor league contract. | Monday, February 10th , 1958 | Signed free agent CL Levi Dunham to a minor league contract. | Wednesday, January 15th , 1958 | Signed free agent RP Otis Guthrie to a minor league contract. | Thursday, January 2nd , 1958 | Signed free agent RP Joe McGraw to a minor league contract. | Signed free agent RP Bud Connolly to a minor league contract. | | |