Howard Humphreys entered into practice as a consulting engineer with Trant Brown in 1899. In 1911 Henry Howard Humphreys took one of his sons, Cecil Lee Howard Humphreys (1893 - 1941), into the firm and his second son, Guy Howard Humphreys (1896 - 1951), in 1918. In 1930, upon his father's death, Cecil Lee Howard Humphreys succeeded as senior partner to the firm. With his brother - Guy - he authored a book entitled *The Training of a Civil Engineer* (1932). In the 1980s Howard Humphreys was bought by Brown & Root, which became Halliburton, then Kellogg Brown & Root and at the time of writing (2020) is now KBR. Howard Humphreys continued to act as consultant engineers for the bridge until 2006.
Brian J Thorpe was an employee of Howard Humphreys & Sons.
J R Mottram was an employee of Howard Humphreys & Sons.
Henry Howard Humphreys was the founder of Howard Humphreys & Sons.
7 February 1957
7 February 1957
February 1957
10 January 1958
April 1956
November 1957
April 1956
1 March 1955
7 February 1957
7 February 1957
February 1957
18 February 1957
December 1960
April 1968
November 1955
13 October 1955
September 1955
October 1955
9 December 1955
September 1955
14 September 1955
April 1968
29 September 1955
5 December 1955
October 1955
June 1953
February 1953
31 March 1958
February 1953
March 1967
1953
3 September 1954
June 1953
April 1953
April 1953
December 1953
January 1953
November 1955
December 1953
13 February 1953
c. 1953
c. 1922
c. 1922
November 1966
November 1968
November 1968
26 November 1957
4 December 1957
1968
January 1967
March 1975
December 1950
November 1988
April 1974
April 1974
July 1978
1980
1980
23 October 1980
January 1982
February 1970
November 1955
February 1976
January 1957
November 1988
February 1953