Hilario Ulloa was the acting 10th President

President of Nicaragua

The position of President of Nicaragua was created in the Constitution of 1854. From 1825 until the Constitution of 1838 the title of the position was known as Head of State and from 1838 to 1854 as Supreme Director .-Heads of State of Nicaragua within the Federal Republic of Central America...

 (then called Supreme Director) of Nicaragua

Nicaragua

Nicaragua is the largest country in the Central American American isthmus, bordered by Honduras to the north and Costa Rica to the south. The country is situated between 11 and 14 degrees north of the Equator in the Northern Hemisphere, which places it entirely within the tropics. The Pacific Ocean...

 from 20 October through 7 November 1939. He was the fourth of six temporary presidents to lead the nation following the acceptance of a new constitution in 1838, until the inauguration on 4 March 1841 of the first president elected under the new constitution.