Sheila Hill, who has played a vital role in shaping the Laws of Cricket and training umpires for more than 25 years has retired from MCC's Laws sub-committee.
Hill had a priceless impact on the development of the Laws of the game during a lifetime's involvement with cricket, which also included umpiring the first ever World Cup final between England Women and Australia Women in 1973.
Her service to the game has earned Honorary Life Membership of MCC - she was one of the first ten women to be admitted in 1999 - and Honorary Membership of ECB's Association of Cricket Officials.
She was appointed MBE for services to Women's Cricket in 2011.
Perhaps her biggest contribution to the Laws was through the significant role she played as part of the Laws Rewrite Working Party, whose work culminated in the publication, in 2000, of the first new Code of Laws since 1980.
As part of her contribution to the Laws sub-committee she has also worked on MCC's Open Learning Manual, and on each new Edition of the Laws to be produced since 2000.
She was joint Editor of Tom Smith's Cricket Umpiring and Scoring between 1992 and 2000, and reprised the role alongside her Laws sub-committee colleagues in 2011.
MCC Laws Manager Fraser Stewart said: "It is impossible to exaggerate the contribution that Sheila has made to MCC and to the Laws of Cricket.
"Her encyclopaedic knowledge of the Laws and how they interrelate, her drafting skills and her ability to explain the Laws are second to none.
"Sheila's tireless work on the re-drafting of the Laws and the production of a range of explanatory materials were hugely appreciated and will be greatly missed by the Club."
MCC has also appointed Mark Williams to the new post of Laws of Cricket Advisor.
Williams, currently Maths teacher at Eton College, played first-class cricket for Cambridge University and is an experienced coach, umpire and scorer. He has umpired County 2nd XI cricket and also acts as a tutor in educating both umpires and scorers.