(later John Trumpy & Sons)
John H. Mathis Company and Mathis Yacht Building Company operated in adjacent facilities at Cooper Point in Camden, just upstream of the Ben Franklin Bridge. The former built work boats and the latter yachts. Mathis Yacht Building Company moved from Cooper Point to Gloucester City in mid-1942, where it was acquired by John Trumpy and renamed John Trumpy & Sons in 1943. After the war Trumpy relocated again, to Annapolis MD, where he took over the Annapolis Yacht Yard. If anyone has any more information about this yard and the boats it built, please e-mail timcolton@aol.com.
| Hull # | Original Name | Original Owner | Type | Navy Type | Pennant # | Tons or Ft. | Delivery | Disposition |
| Built by Mathis Yacht Building | ||||||||
| 1 | Caliph | Yacht | 60’ | |||||
| 2 | Dielta | Yacht | 94’ | 1910 | ||||
| 3 | Ocoloqua | Yacht | 65’ | 1909 | ||||
| 4 | Cocopomelo | Yacht | 70’ | 1910 | ||||
| 5 | Gleam | Yacht | 36’ | 1910 | ||||
| 6 | Mascot | Yacht | 36’ | 1910 | ||||
| 7 | Sybill II | Yacht | 82’ | 1910 | ||||
| 8 | Viola | Yacht | 17’ | 1910 | ||||
| 9 | Chelwood | Yacht | 40’ | 1911 | ||||
| 10 | ||||||||
| 11 | Lodona | Yacht | 77’ | 1911 | ||||
| 12 | Ednada III | Yacht | 90’ | 1911 | ||||
| 13 | ||||||||
| 14 | Pauline | Yacht | 57’ | 1911 | ||||
| 15 | Lunaria | Yacht | 70’ | 1911 | ||||
| 16 | Lanai | Yacht | 70’ | 1912 | ||||
| 17 | Nehmeoka | Yacht | 95’ | 1911 | ||||
| 18 | Tender | 1911 | ||||||
| 19 | Tender | 1911 | ||||||
| 20 | Mary C | Yacht | 1912 | |||||
| 21 | Black Duck | Yacht | 50’ | 1912 | ||||
| 22 | Vipi | Yacht | 51’ | 1912 | ||||
| 23 | Inspector | 1912 | ||||||
| 24 | Calabash | Yacht | 70’ | 1912 | ||||
| 25 | 1912 | |||||||
| 26 | 1912 | |||||||
| 27 | Ibis | Yacht | 70’ | 1912 | ||||
| 28 | Georgena | Yacht | 1912 | |||||
| 29 | Content | Yacht | 60’ | 1912 | ||||
| 30 | Ruffled Grouse | Yacht | 63’ | 1912 | ||||
| 31 | ||||||||