Marjorie Mountain was an Australian

tennis Tennis is a racket sport that is played either individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball cov ...

player.

Grand slam finals

Marjorie Mountain reached the final in women's doubles in the inaugural

Australian Championship The National Second Division (NSD) – also referred to under the working title The Championship – is a proposed Australian national second-tier men's, soccer league, to be run by Football Australia and the Association of Australian Footbal ...

1922 with

Esna Boyd Esna Boyd Robertson (née Boyd; 21 September 1899 – 13 November 1966) was an Australian tennis player who reached seven consecutive women's singles finals at the Australian Championships from 1922 through 1928. She won one of those finals, de ...

and they defeated Gwen Utz and Floris St. George 1–6, 6–4, 7–5 to win the title. She also she reached semifinals of the Australian Open in the Mixed doubles with Roy Wertheim in the same year Tennis Spieler
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References

Australasian Championships (tennis) champions Australian Championships (tennis) champions Australian female tennis players Grand Slam (tennis) champions in women's doubles Year of birth missing Year of death missing Place of birth missing {{Australia-tennis-bio-stub