《明史·志·卷三十六》
于是宋濂等人考察得知古人论说为母亲服丧的一共有四十二人，愿意服丧三年的二十八人，服丧一周年的十四人。
于是濂等考得古人论服母丧者凡四十二人，愿服三年者二十八人，服期年者十四人。
Thus, Song Lian and others studied and learned that in total, forty-two people discussed mourning their mothers, twenty-eight were willing to mourn for three years, and fourteen were willing to mourn for one year.