Próspero Morales (31 December 1856 - 17 August 1898) was a Guatemalan lawyer who served as Secretary of Infrastructure, War and Public Instruction during José María Reina Barrios administration.

[1] In January 1897, some rebellions started against Reina Barrios; after a mild battle, a group of invaders were defeated and their leaders were taken prisoners, judged and summarily executed on the same day.

[4] Opposition newspaper La República editors accused the government–and particularly Próspero Morales, former Secretary of Infrastructure, and president Reina Barrios–of wasting the few resources the country had trying to do all their projects at once: besides the Northern Railroad–which in case of had been the only project built would have brought considerable benefits to the country–boulevards, parks, squares, public buildings, and luxurious office buildings had been built as well, not to mention the three millions pesos wasted on the failed Exposición Centroamericana.

[7] Back in Tapachula we received support from colonels Rodrigo Castilla and Víctor López, who lived on the Guatemalan side of the border, in San Marcos–where Morales was born.

The commander in chief of the Guatemalan Army was former president Manuel Lisandro Barillas Bercián, who defeated the rebels in Vado Ancho on 5 August of that year.