Yes it is based down mother to kid i think
V. H. Viglielmo was born in 1926.
H. V. Kaltenborn was born in 1878.
H. V. Nanjundaiah was born in 1860.
V. H. Lewis was born in 1912.
H. V. Sheshadri was born in 1926.
H. V. Meyerowitz was born in 1900.
H. V. Porter was born in 1891.
H. V. Hande was born in 1927.
H. V. Kershaw was born in 1918.
H. V. F. Winstone died in 2010.
P. V. H. Weems was born in 1889.
E. V. H. Emmett was born in 1902.