A presidential election was held in Guatemala on 18 December 1939.
“On 12 December 1939, a group of five deputies presented a proposal to Congress suggesting that article 202 be reformed to allow the president Tiburcio Carías Andino and vice-president to remain in power until 1 January 1949. By Decree 16 on 18 December 1939, this proposal was unanimously adopted”.
References
Honduran presidential election, 1939 Wikipedia(Text) CC BY-SA