His profile is a big mess !!
It shows three fathers and two mothers.
He was not a grandson of an Altshuler.
The photo could not possible be him dressed as in western European clerical gowns and with a tallis folded around his neck like that !
He did not have a son Matthew.
Seems "too many cooks spoil the broth" - a common affliction with Geni.
Someone should sort it out if that's possible now.
אני חושב שזה הזמן שמישהו יתפוס בעלות על הרשומה ויעשה שם סדר.
Reb Yisrael Salanter
The picture appears at http://www.jewishpress.com/pageroute.do/19202 - as the photo of Bernard Drachman - a different person altogether!
There's a genealogical Salanter family website at http://www.werbel.net/genealogy/index.php
The "incorrect attribution" may come from http://www.kosherculture.org/rabgallery.html - see 12th down in the Ashkenazi column
See also http://personal.stevens.edu/~llevine/Facforum/index.html where Israel Salanter's name appears a little below the photo - but not intending to say that this is his photo.