(Opvallend: Hindrik met zijn dochters Dirkje en Jantina zijn begin december 1893 alle drie overleden in Rotterdam. Ze wonen dan in Geldermalsen. Wat is daar gebeurd?).

(Emigrated in 1916 to Michigan, USA.)
(In the Census 1920 of Muskegon City, MI, USA mentioned as 'single'.)
(In the Census 1930 Wyoming, Kent, MI, USA mentioned as head of the family with wife Etta and child Henry.)
(In the Sixteenth Census of the United States: 1940, State: Michigan, County: Kent, Township: Wyoming mentioned as head of the family, 54 years, with wife Etta 44 years and son Henry George 13 years old)
(In the Seventeenth Census of the United States: 12 April 1950, State: Michigan, County: Kent, Township: Wyoming, mentioned as Widower, Occupation: Machinist Shaver, Age 64 years, Birthplace: Netherlands, Birth Year: (Estimated) 1886)
(The newspaper with his death announcement is published on Saterday 19 March 1960. In that announcement is mentioned that he past away on Saterday. So most presumebly he past away on Saterday 12 March 1960).

(Mrs. Etta Sietsema, aged 90 passed away Friday morning and is awaiting the return of her Lord, Savior, Jesus Christ. Surving are her children, Henry and Margaret Sportel of Holland; six grandchildren, Douglas and Janie Sportel, Deborah and Ozzie Aylworth, Scott and Mary Sportel, Beth and Charles Rix, Nancy Sportel, Rebecca Sportel; eight great grandchildren. Complete Funeral Services will be held Monday at 1:30 pm at the Zaagman Memorial Chapel, Dr. Dean B. Smith officiating. The family will be at the Funeral Chapel Sunday 2 to 4 and 7 to 9pm. In lieu of flowers, Memorial Contributions may be made to the Fulton Manor of the Holland Home. Zaagman Memorial Chapel).