| GR-book# | Pg# | Instr. # | Surname | Given Names | Residence | Instr. Date | Reg Date | Death Date | Type of Instr. |
| 5-1st | 155 | 714 | JONES | Elisabeth K. | Sault Ste. Marie,ON | 1912-04-01 | 1912-04-25 | | Power of Attorney |
| 6 | 87 | 998 | JONES | Charles Hugh Lepailleur | Sault Ste. Marie,ON | 1916-08-30 | 1917-05-29 | | Power of Attorney |
| 9-1st | 207 | 1939 | JONES | Charles Hughe LePoillau | Sault Ste. Marie, ON | 1927-11-15 | 1928-08-30 | | Power of Attorney |
| 3 | 216 | 303 | JOUCKES | Elizabeth Susan | Sherbrooke | 1901-01-03 | 1901-02-08 | | Marriage Contract |
| 5-1st | 7 | 643 | KEENAN | Hugh Michael | Sault Ste. Marie,ON | 1910-10-20 | 1910-12-08 | | Power of Attorney |
| 3 | 373 | 364 | KENNEDY | Daniel J. | | 1901-06-23 | 1902-05-23 | | Mechanic Lien |
| 3 | 183 | 287 | KENNEDY | Daniel J. | | 1900-11-15 | 1900-11-15 | | Mechanic Lien |
| 3 | 137 | 262 | KENNEDY | Daniel J. | Bay City, Michigan | 1900-09-17 | 1900-09-17 | | Mechanic Lien |
| 12 | 340 | 3350 | KENNEDY | Francis E. | Sault Ste. Marie, ON | 1944-08-17 | 1944-08-28 | | Mental Incompency |
| 10-2nd | 637 | 2504 | KENNEDY | John Roddick | Knowlton | 1919-12-08 | 1935-11-01 | | Power of Attonery |
| 10-2nd | 428 | 2373 | KERR | Andrew | Sault Ste. Marie,ON | 1934-01-26 | 1934-01-29 | | Land Act |
| 13-1st | | 3754 | KING | Harriet | Sault Ste. Marie,MI | 1946-03-04 | 1947-11-05 | | Power of Attorney |
| 3 | 103 | 224 | KINNER | William | Massey Station | 1900-07-10 | 1900-07-13 | | Indenture |
| 3 | 103 | 224 | KINNEY | Sanford | Massey Station | 1900-07-10 | 1900-07-13 | | Indenture |
| 4 | 458 | 611 | KOCOT | Louise J. | Sault Ste. Marie,ON | 1910-01-12 | 1910-04-25 | | Power of Attorney |
| 9-2nd | 361 | 2011 | KOHL | George Hutton | Sault Ste. Marie, ON | 1929-03-18 | 1929-06-19 | | Power of Attorney |
| 11-2nd | 638 | 2985 | LaHAYE | Mary Anne | Sault Ste. Marie, ON | 1940-05-18 | 1941-03-19 | | Power of Attorney |
| 3 | 17 | 181 | Lake Superior Power Co. | | | 1899-01-18 | 1899-01-24 | | Indenture |
| 3 | 69 | 209 | Lake Superior Power Co. | | | 1900-01-30 | 1900-02-08 | | Report |
| 3 | 208 | 299 | Lake Superior Power Co. | | | 1901-01-05 | 1901-01-23 | | Report |
| 3 | 349 | 352 | Lake Superior Power Co. | | | 1902-02-11 | 1902-01-21 | | Report |
| 4 | 70 | 406 | Lake Superior Power Co. | | | 1903-02-06 | 1903-02-11 | | Report |
| 8-2nd | 450 | 1760 | LaLONDE | Eugene & Annie | Sault Ste. Marie,ON | 1926-03-30 | 1926-08-24 | | Separation |
| 13-nd | | 3889 | Land Registry Office for the Register Div of Toronto, The | | Sault Ste. Marie,ON | 1948-10-25 | 1948-12-30 | | Power of Attorney |
| 13-1st | | 3726 | LANE | George Alan | Sault Ste. Marie,ON | 1947-06-30 | 1947-07-22 | | Power of Attorney |
| 13-1st | | 3726 | LANE | Robert Campbell | | 1947-06-30 | 1947-07-22 | | Power of Attorney |
| 3 | 7 | 177 | LATIMER | Robert Stratton | Sault Ste. Marie, ON | 1898-08-06 | 1898-10-08 | | Indenture |
| 13-1st | | 3798 | LAVASSEUR | Stella Marie Anne | Sault Ste. Marie,ON | 1947-06-25 | 1948-04-03 | | Separation |
| 13-1st | | 3798 | LAVASSEUR | George Joseph | Sault Ste. Marie,ON | 1947-06-25 | 1948-04-03 | | Separation |
| 9-2nd | 345 | 2003 | LeBLANC | Annie | Blind River | 1929-01-29 | 1929-05-10 | | Power of Attorney |
| 10-1st | 132 | 2194 | LEFFLER | Henry | Sault Ste. Marie,ON | 1931-06-09 | 1931-06-30 | | Trustee |
| 3 | 282 | 329 | LEIGHTON | Mary Jane | Amherst, Essex Co. | 1901-06-06 | 1901-06-19 | | Power of Attorney |
| 5-1st | 193 | 729 | LETHBRIDGE | Carrie A. | Steelton | 1912-06-19 | 1912-06-20 | | Power of Attorney |
| 10-2nd | 403 | 2359 | LEVIE {heirs} | Mary Jane | Sault Ste. Marie,ON | 1933-11-06 | 1933-11-15 | | Power of Attorney |
| 7-2nd | 547 | 1498 | LEWIS | Alfred William | Sault Ste. Marie,ON | 1923-03-01 | 1923-03-01 | | Power of Attorney |
| 8-2nd | 536 | 1802 | LEWIS | Ethel I. | New York | 1927-01-11 | 1927-01-31 | | Power of Attorney |
| 8-2nd | 538 | 1803 | LEWIS | Mortimer | New York | 1927-01-11 | 1927-01-31 | | Power of Attorney |
| 5-1st | 165 | 718 | LIGHT | William J. | Sault Ste. Marie,ON | 1912-05-04 | 1912-05-07 | | Power of Attorney |
| 4 | 141 | 439 | LIPSITT | J. L. | Sault Ste. Marie,MI | 1903-12-31 | 1904-01-09 | | Power of Attorney |
| 13-1st | | 3689 | London & Western Trusts Company, The | | | 1946-12-20 | 1947-04-15 | | Merger |
| 7-2nd | 494 | 1469 | London Agency/Canada Permante Mortgage | | | 1921-08-17 | 1922-07-24 | | Agreement |
| 3 | 243 | 317 | LONGWORTH | William | | 1901-04-01 | 1901-04-01 | | Discharge of Mech. Lien |
| 3 | 130 | 252 | LONGWORTH | William | | 1900-08-29 | 1900-08-30 | | Mechanic Lien |
| 3 | 155 | 273 | LONGWORTH | William | | 1900-10-27 | 1900-10-27 | | Mechanic Lien |
| 3 | 122 | 243 | LOTERS | Dominic | | 1900-08-21 | 1900-08-21 | | Mechanic Lien |
| 4 | 182 | 455 | LUCAS | Francis Andrew | Sault Ste. Marie,ON | 1904-07-04 | 1904-11-02 | | Power of Attorney |
| 5-1st | 122 | 695 | LYON | Robert Adams | Toronto | 1912-01-08 | 1912-01-10 | | Power of Attorney |
| 5-2nd | 424 | 849 | LYON | Robert A. | Toronto | 1914-09-28 | 1914-10-01 | | Power of Attorney |
| 7-2nd | 422 | 1429 | LYONS | Angelina | Sault Ste. Marie,ON | 1922-02-28 | 1922-04-07 | | Power of Attorney |
| 5-1st | 113 | 689 | MacCAUL | Rebecca Barnett | Sault Ste. Marie,ON | 1904-07-11 | 1911-12-11 | | Power of Attorney |
| 4 | 12 | 387 | MacCOULEY | Margaret Hannah | Newcastle, England | 1902-10-02 | 1902-10-23 | | Power of Attorney |
| 4 | 10 | 386 | MacCOULEY | Thomas Carlise | Newcastle, England | 1902-10-02 | 1902-10-23 | | Power of Attorney |
| 13-1st | | 3686 | MacDONALD | Helen & Donald | Sault Ste. Marie,ON | 1947-02-14 | 1947-03-31 | | Separation |
| 8-2nd | 362 | 1712 | MacKENZIE | Amelia | Owen Sound | 1925-11-10 | 1925-12-07 | | Power of Attorney |
| 3 | 402 | 379 | MADIGAN | I. Luke | Mount Forest, Wellington Co | 1885-04-25 | 1902-09-18 | | Power of Attorney |
| 5-1st | 105 | 684 | MANNING | Marion | Peterborough | 1911-09-30 | 1911-10-31 | | Power of Attorney |
| 5-1st | 207 | 733 | MANSFIELD | Sallie Maria | Clifton Springs, N.Y. | 1895-09-14 | 1912-08-08 | | Power of Attorney |