Father was a lead miner in 1881
1881 Census
Patrick
, 02-10, 044, CUBBON, Richard, Glen Maye Village, Head, Married, 40, Lead Miner, Patrick
, 02-10, 044, CUBBON, Charlotte, Glen Maye Village, Wife, Married, 27, , Patrick
, 02-10, 044, CUBBON, Margaret Ann, Glen Maye Village, Daughter, , 8, Scholar, Patrick
, 02-10, 044, CUBBON, Charlotte Lydia, Glen Maye Village, Daughter, , 3-1/2, , Patrick
, 02-10, 044, CUBBON, Richard James, Glen Maye Village, Son, , 1-1/2, , Patrick

Same1891:

Parish: Patrick
Area: Ballakerka, No.25
Head: Richard Cubbon, 50, Lead Miner, born Patrick
Wife: Charlotte, 37, born Braddan
Lydia, 13, Scholar
Richard, 11, Scholar
Gertrude, 8, Scholar
Edith, 5.
All children born Patrick

You'll have to find the 1901+ censuses to discover the occupation of Richard James.
Sorry, I don't have access.
DJD