[1903 March, Miss Black, “The Work at Lao-ho-k'eo.”, in China's Millions, volume XI, number 3, China Inland Mission, →OCLC, page 34, column 2:
In 1897 Ku-ch'eng Hsien, a city lying some fourteen miles below Lao-ho-k'eo, was opened as an out-station, and an evangelist sent down for permanent work.]
2018 April 3, Emily Feng, “Chinese developers seek piece of booming education market”, in Financial Times, archived from the original on 02 November 2021, Education:
A middle school under construction on the outskirts of Laohekou, Hubei Province, China