You asked
Can you tell me:
1) How many Irish immigrants arrived in the UK from 1956-1966?
2) What was the male/female breakdown of these Irish immigrants?
We said
Thank you for your request concerning the number of Irish immigrants between 1956 and 1966 and their sex.
Unfortunately, we don’t have data available to enable us to answer your question as the earliest long-term international migration data we publish only go back to 1964 and do not include citizenship at individual country level.
Please do not hesitate to contact us directly on pop.info@ons.gov.uk, if you require anything further.