His sons were linked to families Blanco, Ferrer, Michelena, Pelliza and Torres, outstanding soldiers who served during the Argentine War of Independence.

He was born on September 15, 1787, in Buenos Aires, and was baptized the next day in the Metropolitan Cathedral by the presbyter Juan Antonio Delgado as Josse Manuel Cornelio Ramón Jugluns de Canaverys, being his godmother Juana Fonelo,[3] belonging to a family from Cádiz.

His mother's ancestors include Captains Miguel Gerónimo Esparza,[7] Francisco de Salas Reynoso, Pedro Morales y Mercado and Gonzalo Carbajal,[8] who served as General and Lieutenant Governor of Santa Fe.

[9] Manuel Canaveris and his brothers Mariano, Joaquín and José were members of the volunteer militias, for defense of Buenos Aires during the British invasions of the Río de la Plata 1806–1807.

[12] During the second invasion the British commanders Robert Craufurd and Denis Pack, were defeated by Creole regiments of Montañeses and Patricios in the Convent of Santo Domingo.

[13] His father participated in the secret meetings of the neighbors during the British domination of Buenos Aires,[14] and also contributed money to cover the expenses of the Spanish militias of the city.

[15] His brother Jose Canaveris, a well-known city lawyer, was awarded with the degree of Captain, by the Junta Suprema of Seville for his heroic actions during the English invasions.

[18] He served under the orders of the Colonels José Merelo and Ignacio Álvarez Thomas,[19] and took part in the donations to finance the First Upper Peru campaign in 1810.

In 1810 he rescued a freedman named Raimundo,[21] probably to be enlisted in the Regimiento de Castas, a military unit of freedmen recruited in Buenos Aires.

[24] In 1812, Manuel Canaveris was commissioned to serve as 2nd lieutenant in the 7th Fusilier Company of 2nd Patrician Regiment,[25] participating in the campaigns to the north under the command of Colonel Francisco Ortiz de Ocampo.

[41] His sister-in-law Lucrecia Calderón de la Barca, was married in first nuptials with Tadeo Chavarría, belonging by maternal line to López Camelo families.

This trial was carried out by the Notary Mayor of Government José Ramón Basavilbaso, and included among other witnesses Don Miguel de Azcuenaga.

His son, Sinforoso Canaveri Rodríguez served as lieutenant in the Batallón de Voluntarios Rebajados of Buenos Aires,[47] under the command of Colonel Joaquín María Ramiro.

In 1879, Colonel Tomás O'Gorman attended as godfather at the wedding of his great-granddaughter María Luisa Canaveri with Sergeant Major Damián Vera,[53] a military man who participated in the War of the Triple Alliance.