My 3x great grandfather was born in Mallow, Cork in 1835 and became a seaman. He apprenticed in Padstow, Cornwall until 1850 and then worked on ships mostly out of Liverpool where he had a family and died in 1898. I have copies of his related UK documents (marriage, baptism of children and deaths and death of children) and have found 1881 and 1891 census records. I cannot locate the family in 1871 nor can I find a record of the first marriage (noted as widower in second marriage certificate and two eldest children too close in age to second wife for her to be their mother). I’ve searched in vain for Irish records.
How might I identify the first wife?
How might I find out if the 3x grandfather had siblings?