| 1. | Walter Blacklock was born about 1854; died on 30 Nov 1917; was buried on 2 Dec 1917 in Dixon, Solano County, California. Walter married Mary Gormley in 1877-1878 in Oakland, Alameda County, California. Mary was born on 17 Jan 1859 in Sherbrook, Ontario, Canada; died on 5 Nov 1935 in Vacaville, Solano County, California; was buried on 7 Nov 1935 in Dixon, Solano County, California. [Group Sheet] [Family Chart]
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| 2. | Grace M. Blacklock Family/Spouse: Frank Costello. Frank was born about 1880 in California; and died. [Group Sheet] [Family Chart]
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| 3. | Mary Frances Costello Family/Spouse: Edwin McInnis. Edwin and died. [Group Sheet] [Family Chart] |
| 4. | Leland Costello |
| 5. | Robert W. Costello |
| 6. | John Costello |