However , when the government was about to upgrade the minor district , the name Tha Yang was already given to a district of Phetchaburi Province .
When the office was moved to Tambon Tha Yang in 1909 , the minor district was renamed following the central tambon name .
When the government was about to upgrade the minor district , the name Tambon Tha Yang   was already given to a district of Phetchaburi Province .
When the office was moved to Tambon Tha Yang in 1909 , the minor district was renamed following the central tambon name .