| | | Thursday, August 8th, 1912 | | Signed Gerald Sellers to a minor league contract with a signing bonus of $600. | | Signed Maxwell McPherson to a minor league contract with a signing bonus of $330. |
| Tuesday, August 6th, 1912 | | Signed Paul Strand to a minor league contract with a signing bonus of $210. |
| Monday, August 5th, 1912 | | Signed Bruno Everett to a minor league contract with a signing bonus of $570. | | Signed Weldon Wyckoff to a minor league contract with a signing bonus of $430. |
| Friday, August 2nd, 1912 | | Signed Hooks Dauss to a minor league contract with a signing bonus of $1,850. | | Signed José Velázquez to a minor league contract with a signing bonus of $190. |
| Wednesday, July 31st, 1912 | | Signed Johnny Bassler to a minor league contract with a signing bonus of $340. |
| Tuesday, July 30th, 1912 | | Signed Duane Vogel to a minor league contract with a signing bonus of $180. |
| Saturday, June 22nd, 1912 | | Signed Erskine Mayer to a minor league contract with a signing bonus of $2,350. |
| Thursday, June 20th, 1912 | | Signed Cipriano Gutiérrez to a minor league contract with a signing bonus of $2,800. |
| Wednesday, June 19th, 1912 | | Signed Wally Rehg to a minor league contract with a signing bonus of $770. |
| Tuesday, June 18th, 1912 | | Signed Dan Griner to a minor league contract with a signing bonus of $1,380. |
| Monday, June 17th, 1912 | | Signed Nick Johnston to a minor league contract with a signing bonus of $600. |
| Saturday, June 15th, 1912 | | Drafted RF Cipriano Gutiérrez in the 1912 first-year player draft (Round 1, Pick 7, 7th overall pick). | | Drafted SP Erskine Mayer in the 1912 first-year player draft (Round 1, Pick 9, 9th overall pick). | | Drafted SP Dan Griner in the 1912 first-year player draft (Round 1, Pick 16, 16th overall pick). | | Drafted RF Wally Rehg in the 1912 first-year player draft (Supplemental Round 1, Pick 11, 36th overall pick). | | Drafted SP Hooks Dauss in the 1912 first-year player draft (Supplemental Round 1, Pick 12, 37th overall pick). | | Drafted RF Nick Johnston in the 1912 first-year player draft (Round 2, Pick 7, 44th overall pick). | | Drafted MR Gerald Sellers in the 1912 first-year player draft (Round 2, Pick 14, 51st overall pick). | | Drafted CF Bruno Everett in the 1912 first-year player draft (Round 2, Pick 19, 56th overall pick). | | Drafted C Johnny Bassler in the 1912 first-year player draft (Round 3, Pick 5, 68th overall pick). | | Drafted LF Maxwell McPherson in the 1912 first-year player draft (Round 3, Pick 9, 72nd overall pick). | | Drafted SP Weldon Wyckoff in the 1912 first-year player draft (Round 4, Pick 7, 92nd overall pick). | | Drafted MR Paul Strand in the 1912 first-year player draft (Round 4, Pick 8, 93rd overall pick). | | Drafted SP José Velázquez in the 1912 first-year player draft (Round 5, Pick 7, 114th overall pick). | | Drafted SP Duane Vogel in the 1912 first-year player draft (Round 5, Pick 9, 116th overall pick). | | Drafted SP Sean Wright in the 1912 first-year player draft (Round 6, Pick 5, 136th overall pick). | | Drafted SP Álex Gómez in the 1912 first-year player draft (Round 7, Pick 5, 152nd overall pick). | | Drafted MR Lee Dashner in the 1912 first-year player draft (Round 8, Pick 5, 168th overall pick). | | Drafted SP Steven Michael in the 1912 first-year player draft (Round 9, Pick 5, 184th overall pick). | | Drafted MR Doc Imlay in the 1912 first-year player draft (Round 10, Pick 5, 200th overall pick). | | Drafted MR Dave Gregg in the 1912 first-year player draft (Round 11, Pick 5, 216th overall pick). | | Drafted MR Tom Drohan in the 1912 first-year player draft (Round 12, Pick 5, 232nd overall pick). | | Drafted MR Patrick Bell in the 1912 first-year player draft (Round 13, Pick 5, 248th overall pick). | | Drafted CL Júlio Lópes in the 1912 first-year player draft (Round 14, Pick 5, 264th overall pick). | | Drafted MR Marc Soper in the 1912 first-year player draft (Round 15, Pick 5, 280th overall pick). | | Drafted MR Keith Batista in the 1912 first-year player draft (Round 16, Pick 5, 296th overall pick). | | Drafted MR Masujiro Arihyoshi in the 1912 first-year player draft (Round 17, Pick 5, 312nd overall pick). | | Drafted MR Harley Williams in the 1912 first-year player draft (Round 18, Pick 5, 328th overall pick). | | Drafted MR John Westcott in the 1912 first-year player draft (Round 19, Pick 5, 344th overall pick). | | Drafted LF Vern Duncan in the 1912 first-year player draft (Round 20, Pick 5, 360th overall pick). | | Drafted RF Ned Graham in the 1912 first-year player draft (Round 21, Pick 5, 376th overall pick). | | Drafted RF Cooper White in the 1912 first-year player draft (Round 22, Pick 5, 392nd overall pick). | | Drafted RF Ray Morris in the 1912 first-year player draft (Round 23, Pick 5, 408th overall pick). | | Drafted 1B José Gómez in the 1912 first-year player draft (Round 24, Pick 5, 424th overall pick). | | Drafted LF José Rivera in the 1912 first-year player draft (Round 25, Pick 5, 440th overall pick). |
| Thursday, November 16th, 1911 | | 1B Derek Roberts received a 1-year contract through automatic renewal worth a total of $833. | | 1B Chick Hartley becomes a free-agent. | | 2B Jimmy Walsh received a 1-year contract through automatic renewal worth a total of $990. | | SP Ernie Groth received a 1-year contract through automatic renewal worth a total of $990. | | C Edward Madison received a 1-year contract through automatic renewal worth a total of $833. | | MR Kid Speer received a 1-year contract through automatic renewal worth a total of $990. | | MR Fred Gaiser received a 1-year contract through automatic renewal worth a total of $990. | | C George Gibson becomes a free-agent. | | SP Jack Warhop received a 1-year contract through automatic renewal worth a total of $833. | | SP Henry Gehring received a 1-year contract through automatic renewal worth a total of $833. | | 2B Johnny Evers becomes a free-agent. | | MR Jim Pastorius becomes a free-agent. | | C Tom Walsh becomes a free-agent. | | 1B Willy Fetzer becomes a free-agent. |
| Monday, November 13th, 1911 | | SP Glenn Liebhardt received a 1-year contract through arbitration worth a total of $4,500. | | SP Russ Ford received a 1-year contract through arbitration worth a total of $1,250. | | CF Rebel Oakes received a 1-year contract through arbitration worth a total of $1,250. | | CF John Kane received a 1-year contract through arbitration worth a total of $1,250. | | CF Mike Mitchell received a 1-year contract through arbitration worth a total of $1,572. | | 3B Harry Lord received a 1-year contract through arbitration worth a total of $2,323. | | 2B Bill Sweeney received a 1-year contract through arbitration worth a total of $3,400. | | RF Harry McChesney received a 1-year contract through arbitration worth a total of $1,250. | | SP Jim Hackett received a 1-year contract through arbitration worth a total of $1,250. | | MR Happy Townsend received a 1-year contract through arbitration worth a total of $3,600. | | CL Ollie Johns received a 1-year contract through arbitration worth a total of $1,250. | | SP Walter Johnson received a 1-year contract through arbitration worth a total of $4,000. |
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