From the clerical survey of Älgarås between 1870 and 1882, AI:4 pg 191 it appears that Karl Johan Julin was born in Älgarås on 8 Dec. 1847 whereas Johanna Lovisa Karlsdotter was born on 5 March 1848 in Ransberg. She died 24 September 1875 and Karl Johan Julin remarried in 1876 to Britta Kristina Pettersdotter b. 1842 in Fredsberg.
Henning had a brother Johan Edvard b. 16 August 1871 in Älgarås, died as infant in Dec. 1871. Henning also got a sister Hilma Fredrika b. 14 sept 1875 in Älgarås,
This is the situation as of 1900 in Älgarås: (from Census):
Record 1951351
Julin, Karl Johan f. d. soldat
b. 1847 in Älgarås (Skaraborgs län, Västergötland)
Man, married, father
Högsås Älgarås (Skaraborgs län, Västergötland)
Place of birth (original source): Älgarås Skaraborgs län
Record 1951352
Petersdtr., Beata Kristina
b. 1842 in Fredsberg (Skaraborgs län, Västergötland)
Woman, married, mother
Högsås Älgarås (Skaraborgs län, Västergötland)
Place of birth (original source): Fredsberg Skaraborgs län
Record 1951350
Anna Serafia
b. 1879 in Älgarås (Skaraborgs län, Västergötland)
d. Girl, child
Högsås Älgarås (Skaraborgs län, Västergötland)
Place of birth (original source): Älgarås Skaraborgs län
Record 1951349
Johan August
b. 1881 in Älgarås (Skaraborgs län, Västergötland)
s. Boy, child
Högsås Älgarås (Skaraborgs län, Västergötland)
Place of birth (original source): Älgarås Skaraborgs län
Record 1951348
Gustaf Emil
b. 1886 in Älgarås (Skaraborgs län, Västergötland)
s. Boy, child
Högsås Älgarås (Skaraborgs län, Västergötland)
Place of birth (original source): Älgarås Skaraborgs län
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the sister Hilma Fredrika is found in 1900 Census residing in Stockholm
Record 292617
Julin, Hilma Fredrika Piga
b. 1875 in Älgarås (Skaraborgs län, Västergötland)
Woman, single
Vildmannen N:o 7 Jakob och Johannes rote 7 (Stockholms stad, Uppland)
Place of birth (original source): Älgarås Skaraborgs län
I'm not related. Borghild´s mother- nothing found so far. She is not in Kiruna as of 1900. I have no idea from where she came.