Family Slum Portraits?

Been reading a book of essays on Paul Strand. One of the most famous photographs ever taken is Strand's photograph of the Italian family (posed shot by Strand).  I would like to try some family portraits in Klong Toey in September, working with that many people would be a challenge but could lead to a strong image. If Strand can do it without speaking Italian I should be able to work with a Thai family on a portrait.
Here is Strand's wonderful photo:

The Family Luzzara Italy 1953, Paul Strand