I think we had corresponded at one time about Mackin.I found Daniel in the 1920 census as Makin, with wife Margrette, age 21, daughter Catherine (age 4), sons Daniel (age 3) and Robert (age 10/12). So that would make Margrette born about 1899 as you said.I would think her name would really be Marguerite or Margaret.
I do have a Marguerite (Toot) Sophrona Lapan married to a Daniel P. Marbois (?).She was born in 1898 and married Daniel 24 November 1914 in Highgate. When I looked at the record, I could not read the last name.Her parents are Ectos Hector C Lapan and Dolly Adeline Ellen Keenan.When I look at the census record the Makin looks like Marbois so perhaps this is the person you are looking for.Next time I go to the libary, I will look up the marriage again.
Do you have any information on Daniel's family - ie his father?