Te Haereroa, the son of Tangatahē and husband of Hinenehu, signed Te Tiriti at Tauranga in April or May 1840. His son Tahu signed the first and second deeds of sale for Te Papa block to the Church Missionary Society in 1838 and 1839.
For further information and sources see Debbie McCauley, The Treaty of Waitangi in Tauranga: Te Tiriti o Waitangi ki Tauranga Moana: https://debbiemccauleyauthor.wordpress.com/heritage/cultural-heritage/te-tiriti-o-waitangi-ki-tauranga-moana-treaty-signatories