Some articles on ulfr:

Ingvar Runestones - Södermanland - Sö 9
... the cross in the center to emphesize salvation the text meaning "may God help Ulfr's soul" surrounds the cross ... Helga, they raised this stone in memory of Ulfr, their son ... May God help Ulfr's soul." ...
England Runestones - Uppland - U 344
... were many years between the danegelds, it is likely that Ulfr returned to Sweden after each danegeld to live as a wealthy magnate ... Latin transliteration in ulfr hafi o