Michael Gryll honors his paternal grandfather Szlama Lejzor Gril, who was born in
Pultusk, Poland, in 1882 and died around 1939 in Russia. He worked as a tailor during
his life, but the specific circumstances of his death are not known. Michael Gryll
also honors his paternal grandmother Jachet Daniel Gril, who was born in Przosnysz,
Poland, in 1886. Very few details are known about their lives, but their son, Daniel
Gryll, mourned their deaths by observing a Yahrzeit for them. He chose a death date
for both of his parents because he did not know the actual date of their deaths.