When Laura Ingalls Wilder finally settled down with her husband, she lived on 40 acres of land in a HUGE house. It was 1 and a half storeys high and had 10 rooms, 6 on the first floor and 3 above. (maybe the extra room was the tiny house)
She had only one surviving child, daughter Rose who saved up and bought her mother ANOTHER house. On the same land. But Laura and her hsuband didnt like the one she bought (Rose cottage) and moved back to their big farmhouse (Rocky Ridge)
now her house has been turned into a museum. 2 more houses were built on their land, to house the musueum curator and visitors, but then, because they were not in the style of the original house, they got razed.
?! all the other houses she lived in as a child, what's left of them, also got turned into museums.
I think what happened is the original house was 'little' and they just kept on adding rooms till it got to its present size...which was not so 'little'. It is described on the website as 'rambling'