This is a continuation of your Forum discussion here
https://groups.google.com/forum/#!profile/mitappinventortest/APn2wQcpmcxWhgQo62yLjQ0tOxv1BQdbBxPKjyHAJmbWUwJ18WD_V7ctaBds-cSZxtak6TyNqMkA/mitappinventortest/oW4lazmp-FE/Qrf94WC-BQAJ Miki.
There are no App Inventor tutorials showing how to make a Family Tree app. You might look for examples of other developer's efforts to develop 'something' Go to Gallery, search for Family Tree and you find this

search for ancestors or genealogy and you might find more. Will it be exactly what you want? Only you know. What have you tried? Post what you have done so far and someone might be able to provide
specific advice Miki. To do what you want to do, you have to learn how to use the Canvas and databases. Have you read through the material below and done any AI tutorials? If you had, you probably
could answer your questions. Simply, there is no tutorial; you have to learn to build the pieces of your Family Tree app and put them together.
Here are some resources to help you learn to use the AI2 tools A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook
http://www.appinventor.org/book2 ... the links are at the bottom of the Web page. The book 'teaches' users how to program with AI2 blocks.