RootsChat.Com

There's a tree for him on Family Search, consisting of about 24 records. It includes the Sweden-related records, as well.

For example, here's his 1870 birth record. You need to register and log in to view the record.

https://www.familysearch.org/ark:/61903/1:1:QRQH-8D3Z

Family Search is also good for US Passenger manifest records from around the turn of the century.

Quote from: briankaess on Sunday 19 May 24 17:27 BST (UK)

Looking for Passenger Lists/Arrival/Emigration Records for Frederick Oskar Anderson

Brian - Why didn't you indicate his actual name was Oskar Fredrik Johansson?       See Reply #7

Brian, I know that I’ve made a few mistakes on RootsChat (not including previous related posts, asking twice for something, etc.) so I do understand about making mistakes, but FamilySearch has been suggested to you in at least one recent thread as a good resource.  I hope you realize that by me also encouraging the use of FamilySearch first, I’m only trying to save time and effort made by others who are trying to help.   

Regarding Johansson/Anderson: perhaps a search had already been conducted for Johansson and you were hoping he sailed under the Anderson name?  Or, perhaps you accidentally mixed up the names?  Either way, checking a site (by you) prior to posting your question might have caught the possible name mix up or suggested the need for a wee bit of additional information for those trying to help.

I’m sure you value and are thankful for the help provided by others.  I also am very grateful for the time and effort given by others in my numerous posts. 

You are welcome for the digging.  I wanted to find Louis as his evasion was irritating me. 

According to one website, in 1896, a “trotting facility” in Emeryville (which borders Berkeley) was purchased and “immediately” renovated.  Providing that the new facility was in operation in 1897, perhaps Mr. Logan was caught up in the excitement and just couldn’t help himself.  It’s not an excuse, but just a suggestion. 
Oakland Race Track
https://www.thoroughbredracing.com/articles/2108/looking-back-lost-tracks-san-francisco-bay-area/
[I’ve not used the site before; use at your discretion]

I lived and worked in the San Francisco Bay Area for many years.  Should you have any questions about the area, perhaps I might have answers.

Added: I didn’t think of the money lost in today’s value - wow!

Summing up:

1909: Louis N Sandford, died 7 October 1909, San Francisco, CA.  Age 55 (born c1854) [Death Index]
          Dr. L. N. Sandford, born San Francisco, Married, age 55, died 7 Oct 1909 [FuneralHome]
1900: Louis N Sandford, born Dec 1853, California, Single, Dentist, father born Maine; mother Canada English [Census]
1885: Dr. L. N. Sandford, age 31 (born c1854), Dentist [Occ Licenses]
1882: Louis Napolean Sandford, named in will - by grandmother Eliza Hannath(?), 23 July 1882
1880: Louis N. Sanford, Dentist John P. Trumpour, r. 402 1/2 Hayes [City Directory]
1877: Louis Napolean Sanford, age 23 (born c1854), born California, Druggist, residence:Hollister [Voter Reg]
1875: Louis Napoleon Sandford, bookkeeper, res 1212 Turk (St), age 21 (born c1854) [Voter Reg]
         Lewis Sanford, dwl 1212 Turk [City Directory]

I’ve not yet found Louis in 1880, 1870 or 1860 census returns which is a bit odd.  I cannot find the connection to Benjamin.  I’m leaning toward there not being any connection to your Sanfords.

I can have a look around if you like?  I believe Dr. Sanford’s parents were born in Canada, or at least his father, Benjamin, was - his mother was supposedly either born in England or Canada.  If you would prefer to investigate (and confirm that his father was Benjamin), I understand wanting to uncover details on your own.   

Added: Maine was also recorded as Dr. Sanford’s father’s birthplace.