Questions about Catherine

I don't know exactly when John Meinberg died, but I know it was probably sometime between 1875, when his youngest child was born, and 1880, when his widow Catherine married George Hellmann, but I wonder what made Catherine, who was in her late 30s at the time of her second marriage, marry George, who was only 24 at the time? Yes, she had young children so maybe she needed someone to support them, but I have other ancestors who were widowed with young children who never remarried. And he was so young! How did they meet? If she did it for the support, wouldn't she have been better off marrying someone older and established in his trade/profession? They had a daughter, Katherine, within a year or so of getting married. Maybe she was pregnant and they *had* to get married... And George was dead within a few years then, too...was Catherine some sort of Black Widow?

That is all for now.