Manuel Aguilar Chacón

[10] During 1833, while he was working as Federal Senator in Guatemala, the liberal groups from San José and Alajuela backed up his candidacy as chief of state of Costa Rica.

Although he had the highest vote count, he was not able to achieve absolute majority and the Legislative Assembly chose José Rafael de Gallegos y Alvarado.

In March of that same year, when the elected Chief of State to conclude the period in Gallegos, Nicolás Ulloa Soto, declined the position, the Assembly voted in favor of Aguilar Chacón to assume top command but he refused to admit the electoral process.

[12] With the support of the communities of Alajuela, Cartago and Heredia, Manuel Aguilar Chacón defeated Braulio Carrillo Colina in the 1837 elections and was chosen as Head of State for Costa Rica for the period 1837–1841.

[15][16] Manuel Aguilar Chacón was overthrown on May 27, 1838 by a military coup d'état that rose Braulio Carrillo Colina into power.

In 1845 the Government of Costa Rica designated him as delegate to the "Dieta Unionista Centroamericana" (Centroamerican Union Conference) that was expected to hold a meeting in Sonsonate, El Salvador in 1846.