[Maria Theresa (Ship) of New Bedford, Mass., mastered by Micajah Swift and then Eber C. Almy, keeper unknown, on voyage 26 November 1847 – 21 March 1851],
![[Maria Theresa (Ship) of New Bedford, Mass., mastered by Micajah Swift and then Eber C. Almy, keeper unknown, on voyage 26 November 1847 – 21 March 1851],](https://archive.org/services/img/mariatheresaship00mari_0)
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![[Martha (Bark) of New Bedford, Mass., mastered by James E. Stanton, keeper unknown, on voyage 5 October 1872 – 20 November 1874],](https://archive.org/services/img/marthabarkofnewb00mart)
![[Mary Ann (Ship) of Fairhaven, Mass., mastered by Thomas Dallman, keeper Otis F. Thatcher, on voyage 16 September 1854 – 1 April 1858],](https://archive.org/services/img/maryannshipoffai00mary)
![[Massachusetts (Ship) of Nantucket, Mass., mastered by Seth Nickerson Jr., keeper James B. Snow, on voyage 16 November 1848 – 22 April 1851],](https://archive.org/services/img/massachusettsshi00mass)
![[Merlin (Bark) of New Bedford, Mass., mastered by Albert A. Thomas, keeper John S. Coquin, on voyage 2 July 1872 – 19 June 1876],](https://archive.org/services/img/merlinbarkofnewb00merl_0)
![[Milton (Ship) of New Bedford, Mass., mastered by Benjamin F. Jones, keeper Edwin F. Thompson (until Oct. 1854) and then Peleg Lawrence, on voyage 1 November 1851 – 8 April 1856],](https://archive.org/services/img/miltonshipofnewb00milt_1)
![[Milton (Ship) of New Bedford, Mass., mastered by Thomas H. Wilson, keeper unknown, on voyage 21 October 1869 – 11 June 1873],](https://archive.org/services/img/miltonshipofnewb00milt_0)
![[Minnesota (Bark) of New York, N.Y., mastered by Clothier Pierce Jr., keeper Clothier Pierce Jr., on voyage 25 June 1868 – 13 June 1872],](https://archive.org/services/img/minnesotabarkofn00minn)
![[Moctezuma (Ship) out of New Bedford, Mass., mastered by Joseph Tinker, kept by J.H. Rice and two unidentified on voyage from 9 Oct. 1857-11 Apr. 1861]](https://archive.org/services/img/moctezumashipout00moct)
![[Morning Star (Brig) of Boston, Mass., mastered by Andrew D. Colcord, keeper Mrs. Andrew D. Colcord, on voyage 21 June 1875 – 7 December 1875 ],](https://archive.org/services/img/morningstarbrigo00morn)