Table 1.
Example of Sets Displayed to Trainer for Birth Certificate to Census Linking
| A. Information Sets May Decrease Trainer Certainty about a Match | |||||
|---|---|---|---|---|---|
| Record | Name | First/Last Name Commonality Scores |
Age | Birthplace | |
| 4 | Candidate | Jason O’Sullvan | (0.58/0.32) | 33 | Ohio |
| 3 | Candidate | Jason O’Sullivon | (0.58/0.32) | 35 | Ohio |
| 2 | Candidate | Jason O. Sullivan | (0.58/0.84) | 33 | Ohio |
| 1 | Candidate | Jason O’Sullivan | (0.58/0.84) | 35 | Ohio |
| Primary | Jason O’Sullivan | (0.58/0.84) | 35 | Ohio | |
| B. Information Sets May Increase Trainer Certainty about a Match | |||||
| Record | Name | First/Last Name Commonality Scores |
Age | Birthplace | |
| 7 | Candidate | Susan H. Ovie | (0.76/0.078) | 31 | North Carolina |
| 6 | Candidate | Shelly H. Olive | (0.53/0.58) | 35 | North Carolina |
| 5 | Candidate | Sheilagh H. Oglvie | (0.091/0.098) | 31 | North Carolina |
| 4 | Candidate | Sally H. Ogivie | (0.76/0.050) | 31 | North Carolina |
| 3 | Candidate | Shelly O’Neill | (0.53/0.71) | 33 | North Carolina |
| 2 | Candidate | Sylvie H. Ogilbie | (0.40/0.28) | 29 | North Carolina |
| 1 | Candidate | Cecela F. Ogilvie | (0.35/0.53) | 34 | North Carolina |
| Primary | Shelagh Harris Ogilvie | (0.20/0.53) | 31 | North Carolina | |
Notes: Name commonality scores are computed as a ratio, a/b, where a is the log count of the first or last name under consideration in the 1940 Census and b is the log count of the most common first or last name in the 1940 Census. These examples are truncated to a handful of candidate links for ease of presentation. Training sets typically included up to 30 individuals.