Notes:
In 1943 the former town was flooded by what is now the Triadelphia Reservoir when the Brighton Dam was built. It suffered two devastating floods, in 1868 and 1889 (the second an effect of the Johnstown flood). The pin is located near the place at which (I believe) the settlement was located. There is also a graveyard nearby.
See at the Maryland Inventory of Historic Properties (M 23-27): https://mht.maryland.gov/mihp/MIHPCard.aspx?MIHPNo=M%3a+23-37
Esther Stabler, “Triadelphia: Forgotten Maryland Town,” Maryland Historical Magazine 43 (June, 1948): 108-120.
Town : Latitude: 39.233571, Longitude: -77.040702Matches 1 to 7 of 7
Last Name, Given Name(s)  |
Birth  |
Person ID | ||
|---|---|---|---|---|
| 1 |  Briggs, Margaret | 24 Sep 1812 | Triadelphia, Montgomery Co., Maryland | I5761 |
| 2 | Lansdale, Chloe Wimberly | 2 Feb 1888 | Triadelphia, Montgomery Co., Maryland | I36 |
| 3 | Lansdale, Cornelia Houston | 27 Jul 1885 | Triadelphia, Montgomery Co., Maryland | I35 |
| 4 | Lansdale, James Strain | 15 Nov 1880 | Triadelphia, Montgomery Co., Maryland | I266 |
| 5 | Lansdale, John Sr. | 24 Jun 1882 | Triadelphia, Montgomery Co., Maryland | I12 |
| 6 | Lansdale, Richard Hyatt | 27 Oct 1883 | Triadelphia, Montgomery Co., Maryland | I34 |
| 7 | Lansdale, Thomas Franklin | 8 Aug 1844 | Triadelphia, Montgomery Co., Maryland | I32 |
Matches 1 to 1 of 1
| Family |
Marriage |
Family ID | ||
|---|---|---|---|---|
| 1 | Lawrence / Lansdale | 5 Mar 1878 | Triadelphia, Montgomery Co., Maryland | F187 |
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