Free BMD shows 2 births for the same quarter 1912
Wolverhampton
Frank Pearson mother's name Fereday
Aston
Frank A Pearson mother's name Floriday
It seems a coincidence

However, there is a detailed family tree with an entry for Frank A with older siblings but no younger ones.
Although there is a death for mother, there is none for father.
Is this your tree, perhaps?