70 miles of pies . Mrs Derbyshire , an old lady of Boston , USA who has celebrated her golden anniversary as a lady cook . During 40 years out of the 50 she has been employed at her vocation she has baked no fewer than 394,000 pies . A local statistician has esimated that Mrs Derbyshire 's pies , if laid out in a row , would cover 70 miles . 4 January 1923