P. H. B. Lyon died in 1986.
P. H. B. Lyon was born in 1893.
P. H. B Lyon has written: 'Songs of youth and war'
William P. Lyon died in 1913.
p = 2*(b+h)
William P. Lyon was born in 1822.
Do you mean 23 P of C in the H B? 23 Pairs of chromosomes in the human body.
P. H. Moynihan died in 1946.
P. H. Matthews died in 1967.
P. H. Welshimer died in 1957.
P. H. Frimann died in 1839.
H. P. Faye died in 1928.
If a remains the right triangle, No