In September 1818 I brought to the household, still further increased, and now so rich with children and brothers, its _housewife_, in the person of a lady whom a like love of Nature and of childhood with my own, and a like high and earnest conception of education, as the preparation for a life worthy of man, had drawn towards me. She was accompanied by a young girl whom she had some time before adopted as a daughter, and who now came with her to assist her in the duties of the household.[116] We had now a severe struggle for existence for the whole time up to 1820. With all our efforts we never could get the school house enlarged; other still more necessary buildings had to be erected first, under pressing need for them.[117] In the year 1820, on Ascension Day, my brother from Osterode, whose two sons were already my pupils, came to join me with his whole family and all his possessions; urged by his love for his boys, and a wish to help in the advancement of my life's purpose. As my brother, beyond the two sons I have mentioned, had three daughters, my family was increased by five persons through his arrival.[118] The completion of the school-house was now pushed on with zeal; but it was 1822 before we got it finished. Our life from this point becomes so complex that it is impossible to do more than just mention what applies to the Association formed by our still united members. In 1823, Middendorff's sister's son Barop, till then a divinity student in Halle, visited us; and he was so impressed by the whole work that he was irresistibly driven soon afterwards to join us in our life-task.[119] Since 1823, with the exception of such breaks as his work in life demanded, he has been uninterruptedly one of our community, sharing in our work. At this moment[120] he is in Berlin, serving his one year with the colours as a volunteer, and devoting what time he has to spare, to earnest study, especially that of natural science. We hope to have him back with us next spring. In the autumn of 1825 Langethal became engaged to my wife's adopted daughter, who had come with her from Berlin; and Middendorff became engaged to my brother's eldest daughter. Ascension Day 1826 was the wedding-day for both couples. Heaven blessed each marriage with a daughter, but took back to itself the little one of Langethal.