Manuel had a brother name Andres, sister Nieve, may be others; he was born about 1867 in Guaymas Sonora MX, he married Juana Gonzales from Meluge Baja Calif and had 20 children, my mom the youngest born in 1919 and died 2002.
Manuel's father was Ramon Duarte which we know nothing of and his mother was Ma. Concepcion Bojorques born in France somewhere between 1807-1819. Her father was Spanish and her mother French. She came to Guaymas bet 1830-1850's. Ramon and Concepcion were married 2/6/1854 in Guaymas MX.They had 4 children I know of: Manuel (My Grandfather), Jose Ma., Franisco del las Nieves, and Adrian; all born in Guaymas MX.
If you have any information on Ramon, Manuel, Adrian, Jose Maria, or Francisco Duarte please let me know.