Could very possibly be a connection. My records show:
Charles [Karl]F. Rose, b. Jan 1870 Germany, d. Feb 1927 Cook Co. IL. M. Jan 1899 to Mary [Maria] Hilgendorf in Thornton, Cook Co., IL. Mary b. Sept 1878 Germany, d. July 1905 Cook Co., IL. Charles then m. Amelia H. Gramm, Sept 1907, and they had two daughters, Emma S., b. Apr 1908 and Myrtle A., b. abt 1911.

Charles was the son of Charles [Karl] Rose, b. Apr 1841 Germany, d. Oct 1918 Harvey, Cook Co., IL, and his wife, Caroline STAAK [STAACK], she b. Feb 1840, d. bet 1911 - 1918 Cook Co., IL.

Mary Hilgendorf *MAY* have been the daughter of Charles [Karl] Hilgendorf and his wife, Amelia Malhan. There is also a suggestion of a relationship with Antoinette Hilgendorf [maiden name not known]. Antoinette, b. Aug 1852, was widowed by 1900, and had six children, 3 living in 1910 - Elizabeth, b. Nov 1881, Henry Joseph, b. Apr 1884 and Matthew, b. Feb 1892.

Henry Joseph Hilgendorf, b. Apr 1884, d. Mar 1942, m. Wilhelmina Jones, she b. May 1890, d. May 1972. Wilhelmina was a Granddaughter of Charles [Karl] Rose, 1841, and his wife, Caroline STAAK.

Does anything seem to match?