Iancu Iarca is mentioned in the katagraphy (census) of 1831 as being the son of clucer Iordache Iarca. Being 27 years old (born in 1804) he is stated as residing in Râmnicu Sărat and at his property in Topliceni, having an annual income of 100 lei. He also had the rank of clucer
In 1848 he was appointed head of the tribunal of Râmnicu Sărat. From 1852 to 1853 he was administrator of the county of Râmnicu Sărat.
Scarlat Iarca was the landowner of the estate of Petrăcheşti, Buzău