These postcards are from the turn of the century (1900). It was apparently all the rage to make your photographs into postcards and send them to people.
This postcard is addressed to my great aunt in Waterloo, Iowa. I can’t read the year, probably around 1910.
Your card was received glad to hear from you and that you are well. I was away when your card came. Wel we seriously had a good time when you was here. Would be so glad to see you next summer if we all live. Glad you like your school. We have had such nice and lovely weather this fall but this morning it was raining and has rained all day but looks like clearing up this evening. I was to see your sister yesterday. They like their new place real well. It doesn’t seem right to…. the rest is not legible.