Hi M.E.,
From the Emihamn database of CD Emigranten (the Emigrant CD):
First name: KNUT WILHELM
Last name: LARSSON
Age: 15 Gender: M
Parish: VISBY County: I (Gotland)
Port: STOCKHOLM
Date: 1899 04 04
Destination: NEW YORK
Fellows: NEJ (Nej = no. He traveled alone on his ticket.)
Source: 1899:111:3
From the 1890 Arkion database (31 December 1890):
http://www.arkion.se Homeparish: Wisby domkyrko
Residence: Wisby
County: Gotland
SVARvolume: 000182 Card nr: 16
Page: 30 Row: 34
F = born.
Persons in the household
Fam nr: 1
Mårten Petter Olof Larsson f. 1844 in Westkinde, Åkare (carter, coachman)
wife Lovisa Wilhelmina Kristina f. Pettersson f. 1844 in Atlingbo
s. Karl Petter f. 1875 in Stenkumla
s. Knut Wilhelm f. 1883 in Wisby (Visby)
From Arkion 1900 (31 December 1900):
Homeparish: Visby Domkyrko
Residence: Klinterotens 3:e qv. n:o 9
County: Gotland
SVARvolume: Card nr:
Page: 183 Row: 12
Persons in the household
Fam nr: 1
Mårten Petter Olof Larsson f. 1844 in Västkinde Gotlands län, Badmästare
wife Lovisa Vilhelmina Kristina Pettersson f. 1844 in Atlingbo Gotlands län
s. Karl Petter f. 1875 in Stenkumla Gotlands län
It appears, therefore, that Karl Petter emigrated in 1901 or later. I suppose it is possible he emigrated earlier and then returned to Sweden for a while.
This site tells how to find ship manifests. Certainly it is not true that all emigrants came in through New York (Ellis Island).
http://home.att.net/~arnielang/shipgide.html Judy