The firm of Till Henderson is the result of successive amalgamations of at least six old and small practices.

The first of the 'names' of the firm was Mr. John W Till. In 1948 Mr J W Till joined Mr Moss (of the recently dissolved Young & Moss) in partnership and the firm became N H Moss & Till.

An interesting facet of the firm's activities in those early days after World War II was that it was a pioneer in structuring the early dairy company amalgamations in Taranaki; then regarded as something quite radical but now commonplace. Also, it always had a high reputation for common law work.

In 1966 a branch office was opened in New Plymouth and in 1967 an amalgamation with an old New Plymouth firm, Croker, McCormick & Greiner, took place. From then on the Stratford and New Plymouth practices operated under the same name. Mr Moss retired on April 1, 1972 and on the same date the continuing partners took over another venerable New Plymouth firm, Hughes Grey & Co., the assets of which included Post Office Box No. 1, New Plymouth.

In 1974 a further New Plymouth firm, D C Lee, was taken over. The tail was now wagging the dog, the New Plymouth branch in a relatively short time having outstripped the Stratford Office.

In the early 1980's the New Plymouth based partners decided they wished to concentrate solely on the New Plymouth branch of the practice and accordingly the Stratford Office was disposed of to the Stratford resident partner. The urge to grow larger was still present however and in 1987 the firm (following prolonged negotiations) amalgamated with Moss & Co; another firm with a long local history.

In the course of its growth in New Plymouth, from a few rooms in 1966 the firm has moved premises twice from quarters it has outgrown. It now occupies a three storey building right opposite the Court House and the Police Station in the heart of the City.

Tom Sutcliffe, a former Partner opened an office in Hamilton in October 1997 with one support staff member, and at the end of June 2000, this office had six lawyers a legal executive and three support staff employed, working mainly in Employment, Criminal, Civil and Family law.

In July of 2000, as a result of a merger with Buchanan Butler & Rai Till Henderson King re-established a presence in Stratford. Rajan Rai has joined the firm as a partner and runs the Stratford office.

The firm also opened an office in Hawera in December 1997 two days a week and then later was operated five days a week. In April 2001, the firm amalgamated with the practice of Bruce Millard.

The partners John Konijn, Lynda Manning, Rajan Rai and Alex Hope all have a very progressive outlook and are constantly on the alert to improve the firm's performance. The elder statesman of the practice is John Till who retired from the partnership in 1992 but was still involved as a Consultant until July 2006 having completed 60 years of practice.

The firm has always had a strong litigation practice, producing one Queen’s Counsel, Sir Alexander Johnstone, who was regarded as New Zealand’s leading barrister in the 1920s – 1930s. He was offered the Chief Justiceship in 1929 but declined. The following practitioners went on to become judges:

• J.E. Wilson, Mayor of New Plymouth, was a Magistrate and, later, Chief Justice of Samoa

• Ray Jamieson became Chief Judge of the Arbitration Court

• Jack Horn also became Chief Judge of the Arbitration Court

• David Lee was a Magistrate in Hong Kong during the 1980s