Use "manful" in a sentence

1. She would very gladly have gone out to enjoy the bright wintry weather, but discovering that Laurie was dropping with sleep in spite of manful efforts to conceal the fact, she persuaded him to rest on the sofa, while she wrote a note to her mother

2. Laurie was a young lover, but he was in earnest, and meant tòhave it out', if he died in the attempt, so he plunged into the subject with characteristic impetuosity, saying in a voice that would get choky now and then, in spite of manful efforts to keep it steady

3. Then some being shamed by his mercy overcame their fear and went on, and the others took new hope, hearing of a manful deed within their measure that they could turn to, and they departed