I managed to track down Antoine for you. I couldn't find any record of his birth in Les Echelle. I looked at his available Ancestry.com documents and on his passenger record for his trip in 1930, he put his birthplace as Entre-deux-Guiers which is in the the Isère department and I found him there.
He was born 2 September 1882 at 1 in the morning to Antoine Louvat-Louvatiere, age 39, a labourer from Miribel, Isère and Annette Despine-Dagaz, age 28 from La Bauche, Savoie.
Antoine senior was born 14 May 1843 in Miribel, Laurent-du-Pont, Isère to Antoine (who died 30 January 1863 in Miribel) and Marie Berger.
Annette was born Anne Dugaz (not sure where the Despine came from) on 20 April 1851 in La Bauche, Les Echelles, Savoie to Joseph Dagaz and Françoise Gonneton.
Antoine and Annette were married on 14 May 1843 in Miribel. Besides Antoine they had the following children:
1. Joseph born 18 October 1874 in Les Echelles and died 24 March 1876 in Les Echelles.
2. Adéle, born 7 February 1876 in Les Echelles.
3. Jean Marie, born born 10 June 1879 in Entre-deux-Guiers.
4. Marie Mélanie, born 2 August 1893 in Les Echelles, died 12 November 1897 in Les Echelles.
Now for the odd part. I decided to look up the family in the censuses and found them in the 1891 and 1896 Les Echelle records living on rue de la Gare, Le Bourg, Les Echelles.
The 1891 Census lists Antoine senior, Annette, Adéle age 14, Jean Marie age 9, and Antoine senior's sister Léonie age 24. No mention of Antoine.
The 1896 Census lists Antoine senior age 52, Annette age 42, Adéle age 18, Jean Marie age 13, and Mélanie age 2. Again no Antoine.
I searched the 1891 and 1896 censuses for Les Echelles, La Bauche, Entre-deux-Guiers and Miribel but didn't find Antoine. Who knows why his parents left him off of two censuses or maybe he was away.
Last, on that landing record of 1930, Antoine lists his closest relative in France as his nephew Georges Routin of Les Echelles.
I checked the 1906 census and found the Routin's living at 15 rue de Grenoble and they were:
François Routin born 1870, head of household.
Adéle Routin née Louvat-Louvatiere, born 1877, wife.
Margeurite Routin, born 1901, daughter.
Georges Routin, born 1905, son.
Two doors down at 19 rue de Grenoble, Antoine was living with his widowed mother, Annette. No sign of his brother Jean Marie.
The 1931 census has Georges Routin and his wife Marie living at 73 rue de Chambéry in Les Echelles. No one else was listed so I presume they'd all passed away. Georges and Marie were still at that address for the 1936 census (the last one available online) - it was just the two of them, no children.
You can look up all the documents at:http://www.savoie-archives.fr/1380-etat-civil-en-ligne.htm
I'm happy to help with translations or any further research.