| Surname | First | Declaration (date, place) | From | Residence | Witnesses | Sworn |
| Cahel | Michael | 16 Oct 1862, Albany | Ireland | Albany | Patrick Flanagan | 18 Oct 1864 |
| Cahill | Patrick | 30 Mar 1855, Troy | Ireland | Cohoes | Wm Stanton | 25 Oct 1864 |
| Caley | Daniel | 13 Dec 1864 or 61, Albany | Isle of ellan? | Bethlehem | Wm M Bullock | 29 Oct 1864 |
| Campbell | George | discharged soldier | Ireland | Albany | Wm L Thomson | 18 July 1865 |
| Carey | Patrick | herewith | Canada | Albany | John W Kennedy | 11 Oct 1865 |
| Carpenter | John | under age | Ireland | Castleton (Rens) | John G Gorman | 29 Oct 1864 |
| Carrick | John | herewith number 18 vol? | Ireland | Albany | Wm Godson | 20 Oct 1864 |
| Casey | Daniel | herewith | Ireland | Albany | John McDonough | 29 Oct 1864 |
| Cashion | John | 5 April 1862, Albany | Ireland | Albany | Morty Sullivan | 20 Oct 1864 |
| Chapman | Thomas | 28 Jan 1862, Albany | Ireland | Albany | John Mullen | 26 Oct 1864 |
| Clark | Christopher | 30 ? 1859, Albany | Ireland | Albany | John Buring | 18 Oct 1864 |
| Clark | Thomas | 31 ? 1860, Saratoga? | England | Schuylerville | Joseph McKie? | 26 Oct 1864 |
| Clark | Patrick | 28 Oct 1864, Supr Crt, NY | Ireland | Albany | Murdy Sullivan | 29 Oct 1864 |
| Clark | Joseph | discharged soldier | Ireland | Albany | George Nichols | 9 Oct 1865 |
| Claussen | Charles | discharged soldier | Denmark | Albany | Charles F ? | 20 Oct 1864 |
| Clegg | James | 15 Oct 1860, Albany | England | Cohoes | Wm Clough | 26 Oct 1864 |
| Clegg | Thomas | herewith | England | Cohoes | Geo Higgins | 27 Oct 1864 |
| Cock | Henry | 21 April 1862, Albany | Germany | Bethlehem | Geo Michl Brown | 26 Oct 1864 |
| Collins | James | 23 Oct 1856, Albany | Ireland | Albany | John Curran | 27 Oct 1864 |
| Collins | Michael | 26 Oct 1860, Albany | Ireland | Albany | Thomas Corcoran | 28 Oct 1864 |
| Commons | Moses | 27 Sept 1860, Albany | Ireland | Albany | Ann Commons | 25 Oct 1864 |
| Conlin | John | 5 Jan 1860, Albany | Ireland | Greenbush | George Tingle? | 27 Oct 1864 |
| Conlin | Patrick | 29 Oct 1859, Albany | Ireland | Greenbush | John Conlin | 27 Oct 1864 |
| Connell | Jeremiah | 25 Feb 1863, Troy | Ireland | Albany | Wm Scarinell? | 5 April 1865 |
| Conway | Thomas | 19 March 1862, Albany | Ireland | Albany | Michael O'Carey | 27 Oct 1864 |
| Cook | Edward | herewith | England | Chatham Centre | Randon H Vedder | 29 Oct 1864 |
| Cooney | Mathew | herewith | Ireland | Albany | Richard Byrne | 16 May 1865 |
| Cornwall | Robert | in N York over 7 yrs | England | Schenectady | John Wiley | 22 Oct 1864 |
| Costello | James | herewith | Ireland | Albany | James Feelin? | 27 Oct 1864 |
| Craig | Henry | discharged soldier | England | Albany | Charles Furnan | 29 June 1865 |
| Croner | William | 22 Oct 1860, Albany | Prussia | Albany | John Slapon | 20 Oct 1864 |
| Crow | John | 12 March 1862, Albany | Ireland | Albany | Patrick Whalen | 9 Oct 1865 |
| Cullen | Thomas | in Providence RI over 5 yrs | Ireland | Albany | Thomas Blake | 22 Oct 1864 |
| Cullen | Patrick | 28 Mar 1862, Albany | Ireland | Albany | John Shay | 10 Oct 1865 |