Григорий was born on January 13th, 1909. Григорий's father was Иван Алексеевич Галанкин and his mother was Пелагея Николаевна (Галанкина). His paternal grandparents were Алексей Галанкин and <Unknown>. He had a brother and two sisters, named Пётр, Екатерина and Мария. He was the second youngest of the four children. He died due to a respiratory problem and/or pneumonia at the age of 1 on November 16th, 1910 in Попадьино. He was buried on November 18th, 1910 in Попадьино.