According to the family tree of Jim Egeland Ole and Elizabeth had 12 children. Several of them died young but even so there is still a large contingent of the family scattered about the States.
In my general searching I have not found any records that put Lawrence in Glendive Montana, but there are some emigrants from Høyland who do show up in the records covering Glendive or a least the county of 'Dawson, One who carries two familiar names.
Alette Malmin Hegre in the U.S., Obituary Collection, 1930-Current Name: Alette Malmin Hegre Death Age: 97 Birth Date: 9 Nov 1913 Residence Place: Glendive, Montana Death Date: 5 Apr 2011 Death Place: Glendive, Montana Burial Place: Glendive
Alette in the Norway, Church Records, 1812-1938 Name: Alette Gender: Kvinnelig Record Type: dåp (Baptism) Birth Date: 9 Nov Baptism Date: 7 des 1913 (7 Dec 1913) Baptism Place: St. Petri, Rogaland, Norge (Norway) Baptism Municipality: Stavanger Father: Peder Johnsen Malmin Mother: Marie Larsen
So Peder Johnsen Malmin must have died fairly young and not too long after arriving in America. Here is the their childen living with Sven Vasvaag and his wife in the 1930 Census. It also may be that the wife of Sven is the widow of Peter Johnsen Malmin.
So far I do not see a connection with this family and Lawrence. The mother and children came to America a little late of rthatl However there could have been a connection with Peter Malmin that I have not yet found.