 Lucys birthday is 6 August 1911 (as was Lucile Ball (qv)s in  real life). She was born in Jamestown, New York. Lucy Ricardos  birthday was August 6, 1921 ands she was born in West Jamestown, New  York, (a fictitious town used in the episode "The Passports" to  explain why Lucy could not find her passport when going to Europe).  Her birth year was always kept secret as a running gag on the show,  but it was revealed in the aforementioned episode "The Passport".