I have quite a bit of information on Gust Juola that was put together by Steve Howell (who married into the Anne Juola/Peter Josephs family).
Basic info is as follows:
Gustaf Juola born on January 22, 1876 in Kalajoki, Finland.Son of Peter Wahaoja Juola and Marie Lena (surname unknown).He married Anna Joensuu, daughter of Karl Matt Joensuu and Sophia Caroline Rantonen.Gust died on Feb. 16, 1963 in Carlton Co., Minnesota.
Gust and Anna's children were: 1) Emma Sophia Juola, born July 9, 1899 in Superior, WI married Charlie Persson (Charlie died in 1958).Married Isaac (Ike) Preston in 1964. (Ike died in 1968).Moved to California and died there in 1978.
2) Anne Kathryn Juola, born Oct. 17, 1900 in Ely/Winton, MN Married Peter Josephs.(Peter died in 1961).Died in St. Cloud, MN in 1986.
3) Mary Carol Juola, born Feb. 9, 1902, in Superior, WI Married Clifford Haga.Mary died in 1988.
4) Henry Gustaf Juola, born July 11, 1903, on Esko Farm, MN Married Esther Quast.Henry died in 1990.
5) John William ("Bill") Juola, born April 26, 1905, on Esko Farm, MN Married Violet Roach."Bill" died in 1976.
6) Frank Peter Juola, born Oct. 13, 1906, in Superior, WI Married Martha Peters.
7) George Emil Juola, born July 1, 1908, on Esko Farm, MN Married Anna Johnson.George died in 1988.
8) Dorothy "Helen" Juola, born July 24, 1910, on Esko Farm, MNMarried Walter Sarvie."Helen" died in 1970.
9) Charles Joseph Juola, born May 30 1912, in Cloquet, MN Married Aili Johnson.Charlie died in 1945.
I hope this helps.I have information that could be mailed if you'd like.