Help with finding Ship for Isak Atlaksen Guddal

I am having trouble finding my way and am hoping someone can lend some assistance. I am looking for the family of Isak Aslaksen Guddal, emigrating from Kristiansand, Norway 25 June, 1891 (http://tinyurl.com/37937). If I understand the process, there are two ships they could have been on, the S/S Juno (5) or the Thingvalla. Am I correct that these are “feeder” ships, and they would have sailed another ship from Hull to the United States? If so, I am not sure how to figure out what ship that may have been. From the Juno (5) line I can click a link to see corresponding ships, but there isn’t a link for the Thingvalla. I hate to ask so many questions, but I have spent quite a bit of time confusing myself here and need a little help getting “unraveled.” My goal is to figure out the ship they would have sailed and then scroll through the passenger list. Tusen takk for any help! [:)] Cheers – Kalli From the digitalarkivet: 1891 Juni 25 2506 Isak Aslaksen m G Gaardbruger 52 Tonstad S. Minnesota Norge 1891 Juni 25 2506 Inger Sofi Aslaksen f G Hustru 44 Tonstad S. 1891 Juni 25 2506 Astrid Aslaksen f U 21 Tonstad S. 1891 Juni 25 2506 Tonette Aslaksen f U 10 Tonstad S. 1891 Juni 25 2506 Bertha Aslaksen f U 8 Tonstad S. 1891 Juni 25 2506 Aslak Aslaksen m U 6 Tonstad S. 1891 Juni 25 2506 Martha Aslaksen f U 4 Tonstad S.