The whole book "A Lasting Legacy" is online:
http://www.ourroots.ca/toc.aspx?id=11416&qryID=e942aabb-7d38-40cd-984e-1ed6de9a5bf1(although if you prefer hard copy you probably can get it through ILL).
www.footnote.com - there are some interesting naturalisation records here under surname "Lerson"
"Louis P Lerson", "quick look" on the NY index shows he was a sailor, Norwegian, b. June 20 1870, arrived 1889, witness name Walter Eldpen.
A Laurits Peter Larsen is listed on familysearch b. 20 Jun 1870 c. 24 Jul 1870 Haram, More Og Romsdal, Norway - parents Lars Petersen and Oline Olaviusdatter; he had sisters Petrine Oline b. 18 Jul 1868 and Anna Marie b. 19 Jun 1872 and a brother Severin Daniel b. 28 Jul 1874.
This is interesting because from the Leask book the aunt of "Ciger Larson" was a Petrine who came to Canada in 1922 aged 54 (e.g. b. around 1868). She was in Norway until about 1885, and went to South Africa - children of hers mentioned in the book include Harold Johnson (b. 1894) and Johnnie/John/Jack Johnson (arrived in 1907 aged 21), and younger children Phyllis and Cecil (surname probably Ebert).
Here are her arrivals from the Canadian archives site:
http://data2.collectionscanada.gc.ca/006003/t-15017/jpg/30927_2000901347-03755.jpghttp://data2.collectionscanada.gc.ca/006003/t-15017/jpg/30927_2000901347-03759.jpg"Mrs P Ebert", in 1920, aged 50, joining two sons, and as Petrina in 1924, on her way back from a trip to see her daughters - says she was b. Aalesund which would make sense - Ålesund is a city and also a region which includes Haram.
And her maiden name in this SA marriage (her second, to Samuel Ebert) is given as "Harham"!
http://archiver.rootsweb.ancestry.com/th/read/SOUTH-AFRICA-IMMIGRANTS-BRITISH/2004-02/1076897458It is common for Norwegians to take as an alternative to the patronymic name their place of origin (town name or farm name) as a surname.
Tying it all in is this 1900 census record of "Lars and Oline Harham" in which they have a daughter born "Port Natal" in 1883 and a last son b. 1886 in Alesund.
http://www.rhd.uit.no/folketellinger/ftliste_e.aspx?ft=1900&knr=1501&kenr=011&bnr=0005&lnr=01This is their emigration from Haram in 1882, "Lauritz" b. 1870 with them:
http://www.arkivverket.no/URN:kb_read?idx_kildeid=6401&idx_id=6401&uid=ny&idx_side=-319Here they are being recorded as moving to Alesund in 1886, having returned from South Africa:
http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbase&sidenr=133&filnamn=if15011886&gardpostnr=41&personpostnr=47&merk=47#ovreAnd a marriage in 1899 in Alesund between Lauritz Peter Larsen and a Laura Eline Iversen:
http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbase&sidenr=151&filnamn=vi15011894&gardpostnr=332&personpostnr=1986&merk=1986#ovre(His father's surname is given here as Alvestad which I think might be an area/farm in Haram)
I cannot find this couple in the 1900 census of Norway. Laura Eline Iversen's birth can be found on the familysearch site - putting her in August 1880 which matches with the 1911 Canadian census.
Haven't managed to find their emigration yet, either. It appears that Lauritz/Louis might have travelled back and forth before his marriage, i.e. this looks like him:
http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbase&sidenr=24&filnamn=EMIAALE&gardpostnr=3022&merk=3022#ovre