| Name | Census Frequency |
|---|---|
| John Twohey | 10 |
| Mary Twohey | 8 |
| Charles Twohey | 6 |
| Ellen Twohey | 4 |
| Joseph Twohey | 3 |
| Robert Twohey | 3 |
| Alexander Twohey | 2 |
| Annie Twohey | 2 |
| Daniel Twohey | 2 |
| Edward Twohey | 2 |
| Elizabeth Twohey | 2 |
| Ethel Twohey | 2 |
| James Twohey | 2 |
| Julia Twohey | 2 |
| Marian Twohey | 2 |
| William Twohey | 2 |
| Agnes Twohey | 1 |
| Alex Twohey | 1 |
| Alice Twohey | 1 |
| Austin Twohey | 1 |
| Benjamin Twohey | 1 |
| Bernard Twohey | 1 |
| Caroline Twohey | 1 |
| Catherine Twohey | 1 |
| Dennis Twohey | 1 |