| GR-book# | Pg# | Instr. # | Surname | Given Names | Residence | Instr. Date | Reg Date | Death Date | Type of Instr. |
| 5-1st | 36 | 651 | CLERGUE | Bertrand Joseph | Sault Ste. Marie,ON | 1911-01-30 | 1911-02-13 | | Power of Attorney |
| 5-1st | 126 | 697 | CLERGUE | Frances C. | Sault Ste. Marie,ON | 1911-10-27 | 1912-01-23 | | Power of Attorney |
| 5-1st | 35 | 650 | CLERGUE | Margaret Roscoe | Sault Ste. Marie,ON | 1911-01-30 | 1911-01-21 | | Power of Attorney |
| 3 | 70 | 210 | CLIFFE | Kenyon Charles Shine | London | 1900-02-05 | 1900-02-23 | | Power of Attorney |
| 3 | 120 | 234 | COLBASSE | Frances | | 1900-08-20 | 1900-08-21 | | Mechanic Lien |
| 3 | 120 | 238 | COLBRASSO | Gabriel | | 1900-08-20 | 1900-08-21 | | Mechanic Lien |
| 3 | 120 | 235 | COLUCCI | Jos. | | 1900-08-20 | 1900-08-21 | | Mechanic Lien |
| 11-1st | 271 | 2749 | Community Trusts Co. | | Sault Ste. Marie, ON | 1938-05-11 | 1938-05-28 | | Indenture |
| 4 | 137 | 436 | CONMEE | James | | 1903-10-14 | 1903-10-14 | | Mechanic Lien |
| 4 | 136 | 435 | CONMEE | James | | 1903-10-10 | 1903-10-10 | | Mechanic Lien |
| 4 | 135 | 433 | CONMEE | James | | 1903-09-22 | 1903-10-03 | | Mechanic Lien |
| 5-1st | 208 | 734 | CONNORS | Jane | Seattle, Wash | 1912-08-10 | 1912-08-15 | 1912-06-06 | Power of Attorney |
| 4 | 65 | 401 | COOK Bros. | | | 1903-01-24 | 1903-01-24 | | Mechanic Lien |
| 4 | 110 | 415 | COOK Bros. | | | 1903-04-08 | 1903-04-08 | | Mechanic Lien |
| 5-2nd | 346 | 796 | COOPER | Catharine | Toronto | 1913-10-08 | 1913-10-11 | | Power of Attorney |
| 8-1st | 264 | 1658 | COOPER | Jennie | Sault Ste. Marie,ON | 1925-03-23 | 1925-03-24 | | Power of Attorney |
| 12 | 381 | 3385 | COOPER | Louis J. | Sault Ste. Marie, ON | 1944-10-13 | 1944-12-01 | | Power of Attorney |
| 12 | 596 | 3540 | COOPER | Annie Eliza & Lewis | Sault Ste. Marie, ON | 1924-08-06 | 1946-03-28 | | Separation |
| 4 | 391 | 573 | CORKE | Alfred | Toronto | 1897-06-28 | 1909-05-20 | | Power of Attorney |
| 5-1st | 172 | 720 | COULSON | Anna G. | Sudbury | 1912-04-19 | 1912-05-10 | | Power of Attorney |
| 5-1st | 172 | 720 | COULSON | John P. | Sudbury | 1912-04-19 | 1912-05-10 | | Power of Attorney |
| 7-2nd | 527 | 1486 | COYNE | William | Wilmington, Delaware | 1922-09-30 | 1922-12-19 | | Power of Attorney |
| 4 | 281 | 507 | COZENS | Ethel Caroline | Toronto | 1903-06-23 | 1906-09-11 | | Power of Attorney |
| 4 | 261 | 497 | CRAIG | Lottie | Petrolis,Lambton Co. | 1904-03-22 | 1906-07-12 | | Power of Attorney |
| 4 | 361 | 554 | CRONKHITE | Ella May | Gore Bay | 1908-09-05 | 1908-09-28 | | Power of Attorney |
| 12 | 362 | 3368 | CULLIS | Francis Retallick | Bruce Mines | 1944-10-27 | 1944-10-30 | | Custody |
| 3 | 122 | 244 | Cuthbertson Bruce Mine Ltd., The | | | 1900-05-04 | 1900-08-22 | | Power of Attorney |
| 3 | 130 | 253 | DALE | James | | 1900-08-29 | 1900-08-30 | | Mechanic Lien |
| 12 | 547 | 3506 | DAWSON | George | Sault Ste. Marie, ON | 1945-08-10 | 1945-12-04 | | Power of Attorney |
| 8-1st | 191 | 1615 | de BERTODANO | Alice | Whilshire, England | 1924-03-10 | 1924-06-26 | | Power of Attorney |
| 8-1st | 191 | 1615 | de BERTODANO | Henry Shralford | Whilshire, England | 1924-03-10 | 1924-06-26 | | Power of Attorney |
| 8-1st | 191 | 1615 | de BERTODANO | Charles Edmund | Whilshire, England | 1924-03-10 | 1924-06-26 | | Power of Attorney |
| 8-1st | 191 | 1615 | de BERTODANO | Frederick Raiion | Whilshire, England | 1924-03-10 | 1924-06-26 | | Power of Attorney |
| 7-1st | 5 | 1203 | DeCEW | Maria Valdora | Sault Ste. Marie,ON | 1919-09-29 | 1919-1029 | | Power of Attorney |
| 3 | 346 | 350 | DELAIR | Joseph | Sault Ste. Marie, MI | 1901-12-18 | 1901-12-18 | | Mechanic Lien |
| 3 | 141 | 263 | DEMERS | Berlett | | 1900-09-19 | 1900-09-19 | | Mechanic Lien |
| 4 | 216 | 476 | DEMERS | Wilbrod & Henrietta | Sault Ste. Marie,ON | 1905-04-15 | 1905-11-28 | | Power of Attorney |
| 12 | 23 | 3077 | DESARMO | Alphonsine | Sault Ste. Marie, ON | 1940-09-04 | 1942-03-16 | | Power of Attorney |
| 3 | 164 | 279 | DESBARATS | George Pascall | Montreal | 1888-11-18 | 1900-11-01 | | Estate Dispute |
| 3 | 167 | 280 | DESBARATS | George Pascall | Montreal | 1900-10-22 | 1900-11-01 | | Estate Dispute |
| 3 | 159 | 278 | DESBARATS | George Pascall | Montreal | 1858-05-24 | 1900-11-01 | | Estate Dispute |
| 3 | 345 | 349 | DESERT | Edward | Sault Ste. Marie, ON | 1901-12-12 | 1901-12-06 | | Mechanic Lien |
| 3 | 119 | 232 | DESYLVA | Paul | | 1900-08-10 | 1900-08-13 | | Mechanic Lien |
| 3 | 232 | 309 | DeSYLVIA | Paul | | 1901-03-14 | 1901-03-15 | | Not Entitled of Mech. Lien |
| 3 | 293 | 333 | DETROILER | Lydia | Sault Ste. Marie, ON | 1901-04-30 | 1901-06-24 | | Power of Attorney |
| 3 | 121 | 241 | DeTULCO | Antonio | | 1900-08-20 | 1900-08-21 | | Mechanic Lien |
| 12 | 163 | 3199 | DEVON | Exilda | Sault Ste. Marie, ON | 1943-05-07 | 1943-05-13 | | Power of Attorney |
| 7-2nd | 288 | 1411 | DICKSON | Elizabeth B. | Sault Ste. Marie,ON | 1913-11-21 | 1921-12-20 | | Power of Attorney |
| 8-2nd | 391 | 1724 | DIGNAM | Elizabeth Kathleen | Toronto | 1926-01-25 | 1926-03-08 | | Power of Attorney |
| 8-2nd | 575 | 1827 | DIGNAM | Mary Ella | Toronto | 1926-09--07 | 1927-05-10 | | Power of Attorney |
| 8-2nd | 586 | 1833 | DINI | Settimo | Toronto | 1917-12-28 | 1927-06-15 | | Power of Attorney |
| 10-2nd | 471 | 2401 | DODS | Walter | Whitefish Village | 1934-05-21 | 1934-05-38 | | Power of Attorney |
| 7-2nd | 554 | 1503 | Dominion Savings & Huron & Erie Mortgage | | Sault Ste. Marie,ON | 1922-06-15 | 1923-03-19 | | Agreement |
| 9-2nd | 321 | 1992 | Dominison Tar & Chemical Company | | Canada | 1929-01-28 | 1929-03-20 | | Indenture |
| 3 | 321 | 343 | Dominon Brewery Co. Ltd. | | | 1901-04-10 | 1901-10-21 | | Power of Attorney |
| 5-1st | 39 | 652 | DONALDSON | James | Bayfield, Huron Co. | 1911-02-02 | 1911-02-21 | | Power of Attorney |
| 3 | 124 | 245 | Douglas Michipicoten Syndicate | | | 1900-05-04 | 1900-08-22 | | Power of Attorney |