Hello RuthieJo. When you move to the next generation, the child you choose does not "bring" any money with them. They simply inherit the bank balance that was left by their parents when you clicked the "New Generation" button. Since you said the 3rd generation had 619 coins in the bank but when you started the 4th generation there was 662 coins, it's possible that there was an interest payment or event that gave her a few more coins. Never would the 619 (or 662) turn into 1300 by simply starting a new generation. However, when they marry the spouse brings money with them and that money is added to the family bank account. I hope this helps.