Roger Heman (March 28, 1932 November 13, 1989) was an American sound engineer. He won an Academy Award for Best Sound and was nominated for another one in the same category. His father was also a sound engineer and also won an Academy Award, for Best Effects, Special Effects for "Crash Dive".

Based on the paragraph above can we conclude that "Both sound engineers Roger Heman and his father were nominated for and won an Academy Award at the end of their careers."?
It's impossible to say