Heber Mardon was born in 1840. With his father he founded the firm of Mardon and Son which, in 1863, became Mardon, Son & Hall.
A division of Imperial Tobacco, they appear to have made cards almost exclusively for the cigarette token market, which flourished during the 1930s.
The W.D & H.O. Wills Playing Card promotion of the early 1930s
W.D & H.O.Wills Playing Card scheme page 2
Wills’s “Happy Families” cards were issued by the Imperial Tobacco Company (of Great Britain and Ireland) Limited in around 1930.