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Christopher H. Clark
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Knut Knutsson Steintjønndalen
Knut Knutsson Steintjønndalen (22 November 1887 – 11 June 1969) was a Norwegian Hardanger fiddle maker from Bø in Telemark, Norway.
Before he died, Knut Eilevsson Steintjønndalen told his 15-year-old son Knut Knutsson to keep the tradition alive.
Knut made his first Hardanger fiddle at age 15 and was paid approximately $1.50.
61 years later, in 1963, he was paid about $200.
It took him about one month to complete one violin, and he produced about 800–900 fiddles during his life.
He worked every weekday from 7 a.m. until the late evening.
There was no romanticism about this work.
It was hard and tedious labour to keep a living.
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Knut Eilevsson Steintjønndalen
Knut Eilevsson Steintjønndalen (1850 – December 2, 1902) was a Norwegian Hardanger fiddle maker from Bø in Telemark, Norway.
Knut Eilevsson Steintjønndalen continued the Steintjønndal tradition when his brother Jon Eilevsson Steintjønndalen left.
He married and bought the Langkås farm in the Folkestad neighbourhood, and he founded a workshop there.
He experimented with making the tone more powerful by increasing the thickness of the soundboard and bottom.
This feature created quite a demand for his fiddles.
However, his greatest reputation came from the exquisite ornamentation on his instruments.
Knut used a river pearl mussels from the river in Bø to decorate both the grip board and the tailpiece.
Both the varnishing and the rose decorations had not been seen before or since.
At the end of the 1800s he was considered the leading violin maker.
The musicians that he created instruments for included Nils Tjoflot.
He died at age 57.

Question: Who is the uncle of Knut Knutsson Steintjønndalen?