Answer:
Your grandfather had the highest real wage
Explanation:
To compare the wage in different years, we must calculate the present value (PV) of the wages.
Assuming this year is 2020, then there're 36 years from 1984 and 66 years from 1954.
We can use the inflation rate is the discount rate = 3%/ year.
PV of your wage is $20/ hour
PV of your father's = $10*(1+3%)^36=$29
PV of your grandfather = $5*(1+3%)^66=$35
So the grandfather had the highest real wage