Copy letter, from Sir John Herschel to Mrs. Grover, dated at Collingwood Copy of letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Mother and baby [Margaret and Julia] are doing well; John Frederick William Herschel asks questions relating to the Grovers giving up the lease on John Frederick William Herschel's property at Slough. 28 October 1842