Drop down field for ages next to Full Name Field

I would like to be able to put a drop down menu for age next to the Full Name field. I know that I can put it on the next line but would like to keep the form shorter and it would seem to flow better for a parent to put the age next to the name as there will be multiple children for each family.

Or, another option would be:

Full Name [textbox]   Age [textbox]

Please close this out. I found the answers in your very helpful forum!