"Aggrieved Wives"

1."Two-thirds of these marriages were were granted to aggrieved wives."(p.384)
2. I had no clue what this meant alone or in context but my guess would be that it means these wives were sad or lonely.
3. I found that aggrieved means resentment that someone feels after being poorly treated or unfairly treated (dictionary.com). Together aggrieved wives would be wives that were poorly treated by their husbands. During earlier times, women were rarely granted their request for divorce. In 1909 your the likelihood of a marriage ending in divorce was about one in fifteen(Booth,Mays 385).
4.I put together that aggrieved wives would mean wives that were poorly treated by their husbands and thus would be granted a divorce on that account.