Question:
Who was the head of Romania in Jun, 1958?

Context:
 Barbu Catargiu is the head of the government of Romania from Feb, 1862 to Jun, 1862. 
 Ion G. Duca is the head of the government of Romania from Nov, 1933 to Dec, 1933. 
 Manea Mănescu is the head of the government of Romania from Feb, 1974 to Mar, 1979. 
 Ludovic Orban is the head of the government of Romania from Nov, 2019 to Dec, 2020. 
 Nicolae Văcăroiu is the head of the government of Romania from Nov, 1992 to Dec, 1996. 
 Nicolae Ciucă is the head of the government of Romania from Nov, 2021 to Dec, 2022. 
 Lascăr Catargi is the head of the government of Romania from Dec, 1891 to Oct, 1895. 
 Take Ionescu is the head of the government of Romania from Dec, 1921 to Jan, 1922. 
 Ion Gheorghe Maurer is the head of the government of Romania from Mar, 1961 to Feb, 1974. 
 Călin Popescu-Tăriceanu is the head of the government of Romania from Dec, 2004 to Dec, 2008. 
 Ion Gigurtu is the head of the government of Romania from Jul, 1940 to Sep, 1940. 
 Viorica Dăncilă is the head of the government of Romania from Jan, 2018 to Nov, 2019. 
 Dimitrie Ghica is the head of the government of Romania from Nov, 1868 to Jan, 1870. 
 Nicolae Iorga is the head of the government of Romania from Apr, 1931 to Jun, 1932. 
 Mugur Isărescu is the head of the government of Romania from Dec, 1999 to Dec, 2000. 
 Victor Ciorbea is the head of the government of Romania from Dec, 1996 to Apr, 1998. 
 Florin Cîțu is the head of the government of Romania from Dec, 2020 to Nov, 2021. 
 Mihail Kogălniceanu is the head of the government of Romania from Oct, 1863 to Jan, 1865. 
 Dimitrie Sturdza is the head of the government of Romania from Apr, 1897 to Apr, 1899. 
 Theodor Rosetti is the head of the government of Romania from Mar, 1888 to Mar, 1889. 
 Constantin Sănătescu is the head of the government of Romania from Aug, 1944 to Dec, 1944. 
 Ion Emanuel Florescu is the head of the government of Romania from Mar, 1891 to Dec, 1891. 
 Radu Vasile is the head of the government of Romania from Apr, 1998 to Dec, 1999. 
 Ilie Verdeț is the head of the government of Romania from Mar, 1979 to May, 1982. 
 Mihai Tudose is the head of the government of Romania from Jun, 2017 to Jan, 2018. 
 Gheorghe Argeșanu is the head of the government of Romania from Sep, 1939 to Sep, 1939. 
 Alexandru G. Golescu is the head of the government of Romania from Feb, 1870 to Apr, 1870. 
 Petre Roman is the head of the government of Romania from Dec, 1989 to Oct, 1991. 
 Constantin Bosianu is the head of the government of Romania from Jan, 1865 to Jun, 1865. 
 Manolache Costache Epureanu is the head of the government of Romania from May, 1876 to Aug, 1876. 
 Ion Ghica is the head of the government of Romania from Dec, 1870 to Mar, 1871. 
 Theodor Stolojan is the head of the government of Romania from Oct, 1991 to Nov, 1992. 
 Ion C. Brătianu is the head of the government of Romania from Jun, 1881 to Mar, 1888. 
 Dimitrie Brătianu is the head of the government of Romania from Apr, 1881 to Jun, 1881. 
 Sorin Grindeanu is the head of the government of Romania from Jan, 2017 to Jun, 2017. 
 Constantin Argetoianu is the head of the government of Romania from Sep, 1939 to Nov, 1939. 
 Chivu Stoica is the head of the government of Romania from Oct, 1955 to Mar, 1961. 
 Nicolae Rădescu is the head of the government of Romania from Dec, 1944 to Feb, 1945. 
 Mihai Răzvan Ungureanu is the head of the government of Romania from Feb, 2012 to May, 2012. 
 Emil Boc is the head of the government of Romania from Dec, 2008 to Feb, 2012. 
 Miron Cristea is the head of the government of Romania from Feb, 1938 to Mar, 1939. 
 Victor Ponta is the head of the government of Romania from May, 2012 to Nov, 2015. 
 Nicolae Crețulescu is the head of the government of Romania from Jun, 1865 to Feb, 1866. 
 Dacian Cioloș is the head of the government of Romania from Nov, 2015 to Jan, 2017. 
 Octavian Goga is the head of the government of Romania from Dec, 1937 to Feb, 1938. 
 Constantin Dăscălescu is the head of the government of Romania from May, 1982 to Dec, 1989. 
 Gheorghe Gheorghiu-Dej is the head of the government of Romania from Jun, 1952 to Oct, 1955. 
 Petru Groza is the head of the government of Romania from Mar, 1945 to Jun, 1952. 
 Gheorghe Tătărescu is the head of the government of Romania from Jan, 1934 to Dec, 1937. 
 Adrian Năstase is the head of the government of Romania from Dec, 2000 to Dec, 2004. 
 Armand Călinescu is the head of the government of Romania from Mar, 1939 to Sep, 1939. 
 Nicolae Golescu is the head of the government of Romania from May, 1868 to Nov, 1868. 
 Ștefan Golescu is the head of the government of Romania from Nov, 1867 to May, 1868. 
 Petre S. Aurelian is the head of the government of Romania from Dec, 1896 to Apr, 1897.

Answer:
Chivu Stoica